Dr Matthias Kramer

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I am a senior lecturer at the School of Engineering and Information Technology (SEIT), UNSW Canberra. Prior to this, I was working at the University of Queensland and the University of Stuttgart. My background is in Environmental Engineering and I am interested in open-channel hydrodynamics, including multiphase flows, hydraulic structures and measurement instrumentation.

Scholarships of $35,000 (AUD) are available for PhD students who achieved High Distinction (H1) in their undergraduate program and/or have completed a Masters by Research.

If you are interested in working on the topics listed under My Research (or closely related areas), please perform a self-assessment (https://selfassessment.research.unsw.edu.au/) and send me your me your CV, academic transcripts and a research proposal consisting of motivation, (brief) literature review, research objectives and proposed methodology.

Phone

+61420639264

E-mail

m.kramer@adfa.edu.au

Location

Room 127, Building 20 UNSW Canberra Campus Northcott Drive, Campbell, ACT 2600

Book Chapters | 2023

Waldschläger K; Brückner MZM; Almroth BC; Hackney CR; Adyel TM; Alimi OS; Belontz SL; Cowger W; Doyle D; Gray A; Kane I; Kooi M; Kramer M; Lechthaler S; Michie L; Nordam T; Pohl F; Russell C; Thit A; Umar W; Valero D; Varrani A; Warrier AK; Woodall LC; Wu N, 2023, 'Microplastics: What Can We Learn from Clastic Sediments?', in Springer Water, pp. 105 - 116, http://dx.doi.org/10.1007/978-3-031-34455-8_16
Journal articles | 2025

Kramer M; Bung DB, 2025, 'Improving the Measurement of Air-Water Flow Properties Using Remote Distance Sensing Technology', Journal of Hydraulic Engineering, 151, http://dx.doi.org/10.1061/JHEND8.HYENG-14074

Journal articles | 2025

Taghavi N; Niven RK; Kramer M; Paull DJ, 2025, 'Enhancing groundwater vulnerability assessment through Bayesian inference', Journal of Hydrology, 653, http://dx.doi.org/10.1016/j.jhydrol.2025.132781

Journal articles | 2025

Valero D; Belay BS; Moreno-Rodenas A; Kramer M; Franca MJ, 2025, 'Erratum to: “The key role of surface tension in the transport and quantification of plastic pollution in rivers” [Water Research 226 (2022) 119,078]', Water Research, 281, http://dx.doi.org/10.1016/j.watres.2025.123520

Journal articles | 2025

Valero D; Pummer E; Heller V; Kramer M; Bung DB; Mulligan S; Erpicum S, 2025, 'The unspoken value of water infrastructure', Renewable and Sustainable Energy Reviews, 212, http://dx.doi.org/10.1016/j.rser.2025.115378

Journal articles | 2025

Wickramarachchi C; Niven RK; Kramer M, 2025, 'Numerical plastic transport modelling in fluvial systems: Review and formulation of boundary conditions', Water Research, 273, http://dx.doi.org/10.1016/j.watres.2024.122947

Journal articles | 2024

Felder S; Kramer M; Hohermuth B; Valero D, 2024, 'Can Developments in Air-Water Flow Instrumentation Advance Hydraulic Design?', Journal of Hydraulic Engineering, 150, pp. 02524003, http://dx.doi.org/10.1061/JHEND8.HYENG-14037

Journal articles | 2024

Kramer M, 2024, 'Turbulent free-surface in self-aerated flows: Superposition of entrapped and entrained air', Journal of Fluid Mechanics

Journal articles | 2024

Valero D; Felder S; Kramer M; Wang H; Carrillo JM; Pfister M; Bung DB, 2024, 'Air–water flows', Journal of Hydraulic Research, 62, pp. 319 - 339, http://dx.doi.org/10.1080/00221686.2024.2379482

Journal articles | 2023

Cui H; Felder S; Kramer M, 2023, 'Predicting flow resistance in open-channel flows with submerged vegetation', Environmental Fluid Mechanics, 23, pp. 757 - 778, http://dx.doi.org/10.1007/s10652-023-09929-x

Journal articles | 2023

Felder S; Montano L; Cui H; Kramer M, 2023, 'Closure to “Effect of inflow conditions on the free-surface properties of hydraulic jumps” by S. FELDER, L. MONTANO, H. CUI, W. PEIRSON, and M. KRAMER, J. Hydraulic Res. 59(6), 2021, 1004–1017, https://doi.org/10.1080/00221686.2020.1866692', Journal of Hydraulic Research, 61, pp. 923 - 925, http://dx.doi.org/10.1080/00221686.2023.2265877

Journal articles | 2023

Felder S; Severi A; Kramer M, 2023, 'Self-Aeration and Flow Resistance in High-Velocity Flows Down Spillways with Microrough Inverts', Journal of Hydraulic Engineering, 149, pp. 04023011, http://dx.doi.org/10.1061/JHEND8.HYENG-13230

Journal articles | 2023

Kramer M; Valero D, 2023, 'Linking turbulent waves and bubble diffusion in self-aerated open-channel flows: Two-state air concentration', Journal of Fluid Mechanics, 966, http://dx.doi.org/10.1017/jfm.2023.440

Journal articles | 2023

Kramer M; Valero D, 2023, 'Linking turbulent waves and bubble diffusion in self-aerated open-channel flows: two-state air concentration', Journal of Fluid Mechanics, 966, pp. a37, http://dx.doi.org/10.1017/jfm.2023.440

Journal articles | 2023

Kramer M, 2023, 'Velocities and turbulent stresses of free-surface skimming flows over triangular cavities', Journal of Hydraulic Engineering, 149, pp. 04023012, http://dx.doi.org/10.1061/JHEND8.HYENG-13209

Journal articles | 2023

Taghavi N; Niven RK; Kramer M; Paull DJ, 2023, 'Comparison of DRASTIC and DRASTICL groundwater vulnerability assessments of the Burdekin Basin, Queensland, Australia', Science of the Total Environment, 858, pp. 159945, http://dx.doi.org/10.1016/j.scitotenv.2022.159945

Journal articles | 2023

2023, 'Self-Aeration and Flow Resistance in High-Velocity Flows Down Spillways with Microrough Inverts', Journal of Hydraulic Engineering, 149, http://dx.doi.org/10.1061/JHEND8.HYENG-1323

Journal articles | 2022

Cui H; Felder S; Kramer M, 2022, 'Multilayer Velocity Model Predicting Flow Resistance of Aerated Flows Down Grass-Lined Spillway', Journal of Hydraulic Engineering, 148, pp. 06022014, http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0002003

Journal articles | 2022

Taghavi N; Niven RK; Paull DJ; Kramer M, 2022, 'Groundwater vulnerability assessment: A review including new statistical and hybrid methods', Science of the Total Environment, 822, pp. 153486, http://dx.doi.org/10.1016/j.scitotenv.2022.153486

Journal articles | 2022

Valero D; Belay BS; Moreno-Rodenas A; Kramer M; Franca MJ, 2022, 'The key role of surface tension in the transport and quantification of plastic pollution in rivers', Water Research, 226, pp. 119078, http://dx.doi.org/10.1016/j.watres.2022.119078

Journal articles | 2022

Waldschläger K; Brückner MZM; Carney Almroth B; Hackney CR; Adyel TM; Alimi OS; Belontz SL; Cowger W; Doyle D; Gray A; Kane I; Kooi M; Kramer M; Lechthaler S; Michie L; Nordam T; Pohl F; Russell C; Thit A; Umar W; Valero D; Varrani A; Warrier AK; Woodall LC; Wu N, 2022, 'Learning from natural sediments to tackle microplastics challenges: A multidisciplinary perspective', Earth-Science Reviews, 228, pp. 104021, http://dx.doi.org/10.1016/j.earscirev.2022.104021

Journal articles | 2021

Felder S; Montano L; Cui H; Peirson W; Kramer M; Montano Luna L, 2021, 'Effect of inflow conditions on the free-surface properties of hydraulic jumps', Journal of Hydraulic Research, 59, pp. 1004 - 1017, http://dx.doi.org/10.1080/00221686.2020.1866692

Journal articles | 2021

Hohermuth B; Kramer M; Felder S; Valero D, 2021, 'Velocity bias in intrusive gas-liquid flow measurements', Nature Communications, 12, pp. 4123, http://dx.doi.org/10.1038/s41467-021-24231-4

Journal articles | 2021

Kramer M; Felder S; Hohermuth B; Valero D, 2021, 'Drag Reduction in Aerated Chute Flow: Role of Bottom Air Concentration', Journal of Hydraulic Engineering, 147, pp. 04021041, http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0001925

Journal articles | 2021

Kramer M; Felder S, 2021, 'Remote sensing of aerated flows at large dams: Proof of concept', Remote Sensing, 13, pp. 2836, http://dx.doi.org/10.3390/rs13142836

Journal articles | 2021

Kramer M; Hohermuth B; Valero D; Felder S, 2021, 'On velocity estimations in highly aerated flows with dual-tip phase-detection probes - closure', International Journal of Multiphase Flow, 134, pp. 103475, http://dx.doi.org/10.1016/j.ijmultiphaseflow.2020.103475

Journal articles | 2020

Kramer M; Hohermuth B; Valero D; Felder S, 2020, 'Best practices for velocity estimations in highly aerated flows with dual-tip phase-detection probes', International Journal of Multiphase Flow, 126, pp. 103228, http://dx.doi.org/10.1016/j.ijmultiphaseflow.2020.103228

Journal articles | 2020

Kramer M; Valero D, 2020, 'Turbulence and self-similarity in highly aerated shear flows: The stable hydraulic jump', International Journal of Multiphase Flow, 129, pp. 103316, http://dx.doi.org/10.1016/j.ijmultiphaseflow.2020.103316

Journal articles | 2019

Kramer M; Chanson H; Felder S, 2019, 'Can we improve the non-intrusive characterization of high-velocity air–water flows? Application of LIDAR technology to stepped spillways', Journal of Hydraulic Research, 58, pp. 350 - 362, http://dx.doi.org/10.1080/00221686.2019.1581670

Journal articles | 2019

Kramer M; Valero D; Chanson H; Bung DB, 2019, 'Towards reliable turbulence estimations with phase-detection probes: an adaptive window cross-correlation technique', Experiments in Fluids, 60, pp. 2, http://dx.doi.org/10.1007/s00348-018-2650-9

Journal articles | 2018

Kramer M; Chanson H, 2018, 'Optical flow estimations in aerated spillway flows: Filtering and discussion on sampling parameters', Experimental Thermal and Fluid Science, 103, pp. 318 - 328, http://dx.doi.org/10.1016/j.expthermflusci.2018.12.002

Journal articles | 2018

Kramer M; Chanson H, 2018, 'Transition flow regime on stepped spillways: air–water flow characteristics and step-cavity fluctuations', Environmental Fluid Mechanics, 18, pp. 947 - 965, http://dx.doi.org/10.1007/s10652-018-9575-y

Journal articles | 2018

Kramer M; Terheiden K; Wieprecht S, 2018, 'Pumps as turbines for efficient energy recovery in water supply networks', Renewable Energy, 122, pp. 17 - 25, http://dx.doi.org/10.1016/j.renene.2018.01.053

Journal articles | 2017

Kramer M; Wieprecht S; Terheiden K, 2017, 'Minimising the air demand of micro-hydro impulse turbines in counter pressure operation', Energy, 133, pp. 1027 - 1034, http://dx.doi.org/10.1016/j.energy.2017.05.043

Journal articles | 2016

Kramer M; Terheiden K; Wieprecht S, 2016, 'Safety criteria for the trafficability of inundated roads in urban floodings', International Journal of Disaster Risk Reduction, 17, pp. 77 - 84, http://dx.doi.org/10.1016/j.ijdrr.2016.04.003

Journal articles | 2016

Kramer M; Wieprecht S; Terheiden K, 2016, 'Penetration depth of plunging liquid jets - A data driven modelling approach', Experimental Thermal and Fluid Science, 76, pp. 109 - 117, http://dx.doi.org/10.1016/j.expthermflusci.2016.03.007

Journal articles | 2015

Kramer M; Terheiden K; Wieprecht S, 2015, 'Optimized design of impulse turbines in the micro-hydro sector concerning air detrainment processes', Energy, 93, pp. 2604 - 2613, http://dx.doi.org/10.1016/j.energy.2015.10.022

Journal articles | 2013

Kramer M; Wieprecht S, 2013, 'Implementation studies of small energy converters in water supply systems', DVGW Energie Wasser-Praxis

Journal articles | 1995

KRAMER M; ZUNFT J; STEEGBORN J; ZERWAS PM, 1995, 'INELASTIC J/PSI PHOTOPRODUCTION', PHYSICS LETTERS B, 348, pp. 657 - 664, http://dx.doi.org/10.1016/0370-2693(95)00155-E
Working Papers | 2021

Valero D; Schalko I; Friedrich H; Abad JD; Bung DB; Donchyts G; Felder S; Ferreira RML; Hohermuth B; Kramer M; Li D; Mendes L; Moreno-Rodenas A; Nones M; Paron P; Ruiz-Villanueva V; Wang R-Q; Franca MJ, 2021, Pathways towards democratization of hydro-environment observations and data, International Association for Hydro-Environment Engineering and Research, http://dx.doi.org10.26190/unsworks/27984, https://www.iahr.org/library/infor?pid=8934
Preprints | 2025

Kramer M; Wang H; Bung DB, 2025, Discussion on "Resurrecting a Neglected Measurement Technique for Air-Water Flows", http://arxiv.org/abs/2502.11292v1

Preprints | 2025

Kramer M, 2025, On the estimation of specific interfacial areas in aerated flows, http://arxiv.org/abs/2502.09036v2

Preprints | 2024

Kramer M; Bung DB, 2024, Improving the measurement of air-water flow properties using remote distance sensing technology, http://dx.doi.org/10.1061/JHEND8/HYENG-14074

Preprints | 2024

Kramer M, 2024, Developing the next generation of dual-tip phase-detection probes for air-water flow experiments, , http://arxiv.org/abs/2408.06009v2

Preprints | 2024

Kramer M, 2024, Surface detachment and bed entrainment of fluvial plastics, http://arxiv.org/abs/2408.03081v5

Conference Papers | 2023

Cui H; Felder S; Kramer M, 2023, 'Time-varying Hydraulic Properties on Grassed Spillways Due to Erosion', Vienna, pp. 1877 - 1878, presented at 40th IAHR World Congress, Vienna, 21 August 2023 - 25 August 2023

Other | 2023

Felder S; Montano L; Cui H; Kramer M, 2023, Closure to “Effect of inflow conditions on the free-surface properties of hydraulic jumps” by S. FELDER, L. MONTANO, H. CUI, W. PEIRSON, and M. KRAMER, J. Hydraulic Res. 59(6), 2021, 1004–1017, https://doi.org/10.1080/00221686.2020.1866692, http://dx.doi.org/10.1080/00221686.2023.2265877

Preprints | 2023

Kramer M, 2023, Turbulent free-surface in self-aerated flows: Superposition of entrapped and entrained air, , http://arxiv.org/abs/2312.03961v2

Conference Papers | 2022

Cui H; Felder S; Kramer M, 2022, 'EFFECTS OF UNDERLYING SOIL ROUGHNESS ON FLOW PATTERNS IN GRASSED WATERWAYS', in Proceedings of the IAHR World Congress, pp. 2599 - 2608, http://dx.doi.org/10.3850/IAHR-39WC2521716X2022581

Conference Papers | 2022

Cui H; Felder S; Kramer M, 2022, 'Effects of Underlying Soil Roughness on Flow Patterns in Grassed Waterways', in Proceedings of the IAHR World Congress, Research Publishing Services, Granada, Spain, presented at 39th IAHR World Congress, Granada, Spain, 19 June 2022 - 24 June 2022, http://dx.doi.org/10.3850/IAHR-39WC252171192022581

Conference Papers | 2022

Cui H; Felder S; Kramer M, 2022, 'Non-intrusive measurements of air-water flow properties in supercritical flows down grass-lined spillways', in Proceedings of the 9th International Symposium on Hydraulic Structures (ISHS), Roorkee, India, pp. 101 - 109, presented at 9th International Symposium on Hydraulic Structures, Roorkee, India, 24 October 2022 - 27 October 2022, http://dx.doi.org/10.26077/24ae-7606

Conference Papers | 2022

Kramer M, 2022, 'Four-Layer Velocity Model for Flows Down Stepped Chutes', in Proceedings of the IAHR World Congress, pp. 2319 - 2323, http://dx.doi.org/10.3850/IAHR-39WC2521716X2022820

Conference Papers | 2022

Kramer M, 2022, 'Four-Layer Velocity Model for Flows Down Stepped Chutes', in Ortega-Sanchez M (ed.), Proceedings of the 39th IAHR World Congress, International Association for Hydro-Environment Engineering and Research - IAHR, Granada, pp. 2319 - 2323, presented at IAHR World Congress, Granada, 19 June 2022 - 24 June 2022, http://dx.doi.org/10.3850/iahr-39wc252171192022820

Conference Papers | 2022

Rui L; Splinter K; Kramer M; Felder S; Li R, 2022, 'Angle effects of LIDAR measurements on a flat surface and in high-velocity spillway flows', in ISHS 2022 - 9th IAHR International Symposium on Hydraulic Structures, Roorkee, India, presented at 9th International Symposium on Hydraulic Structures, Roorkee, India, 24 October 2022 - 27 October 2022, http://dx.doi.org/10.26077/64f1-4c4b

Conference Papers | 2021

Cui H; Felder S; Kramer M, 2021, 'Modelling Velocity Profiles of Aerated Flows Down Grassed Spillways', Virtual conference, presented at 8th International Junior Researcher and Engineer Workshop on Hydraulic Structures (IJREWHS 2021), Virtual conference, 05 July 2021 - 08 July 2021, http://dx.doi.org/10.26077/bec3-52cb

Conference Abstracts | 2021

Taghavi N; Niven R; Paull D; Kramer M, 2021, 'Bayesian groundwater vulnerability assessment', in MODSIM 2021 - Modelling for action with a flood of data and a cloud of uncertainty, The Modelling and Simulation Society of Australia and New Zealand Inc., International Convention Centre Sydney, pp. 277 - 278, presented at MODSIM2021, 24th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, International Convention Centre Sydney, 05 December 2021 - 09 December 2021, https://www.mssanz.org.au/modsim2021/abstracts.html

Conference Papers | 2020

Cui H; Kramer M; Felder S, 2020, 'Velocity profiles on a grass-lined spillway in supercritical flow', in Carrillo JM; Fenrich E; Ferras D; Wieprecht S (eds.), Proceedings of the 1st IAHR Young Professionals Congress, International Association for Hydro-Environment Engineering and Research -IAHRPª Bajo Virgen del Puerto, 3 28005 Madrid, SPAIN; A-1 Fuxing Road, Haidian District, 100038, Beijing, CHINA, Online, pp. 211 - 212, presented at 1st IAHR Young Professionals Congress, Online, 17 November 2020 - 18 November 2020, http://dx.doi.org/10.26190/unsworks/28091

Conference Papers | 2020

Kramer M; Hohermuth B; Valero D; Felder S, 2020, 'Leveraging event detection techniques and cross-correlation analysis for phase-detection probe measurements in turbulent air-water flows', in Proceedings of the 8th IAHR International Symposium on Hydraulic Structures, ISHS 2020, University of Queensland Library, presented at Proceedings of the 8th IAHR International Symposium on Hydraulic Structures ISHS2020, http://dx.doi.org/10.14264/uql.2020.591

Reports | 2020

2020, Air-water flows at hydraulic structures: Experimental investigations of interfacial characteristics and air-water mass transfer, http://dx.doi.org/10.13140/rg.2.2.19550.25928

Conference Papers | 2019

Kramer M, 2019, 'Particle size distributions in turbulent air-water flows', in Calvo L (ed.), Proc. 38th IAHR World Congress, IAHR Publication, Panama City, pp. 5722 - 5731, presented at 38th IAHR World Congress, Panama City, 01 September 2019 - 06 September 2019, http://dx.doi.org/10.3850/38wc092019-0680

Conference Papers | 2019

Valero D; Kramer M; Bung D; Chanson H, 2019, 'A stochastic bubble generator for air-water flow research', in Calvo L (ed.), Proc. 38th IAHR World Congress, IAHR Publication, Panama City, pp. 5714 - 5721, presented at 38th IAHR World Congress, Panama City, 01 September 2019 - 06 September 2019, http://dx.doi.org/10.3850/38wc092019-0909

Conference Papers | 2018

Kramer M, 2018, 'Free-Surface Instabilities in High-Velocity Air-Water Flows down Stepped Chutes', in 7th IAHR International Symposium on Hydraulic Structures, ISHS 2018, Aachen, Germany, presented at 7th International Symposium on Hydraulic Structures, Aachen, Germany, 15 May 2018 - 18 May 2018, http://dx.doi.org/10.15142/T3XS8P

Reports | 2015

Kramer M; Wieprecht S, 2015, Efficient energy recovery in water supply systems, TB01/2015

Theses / Dissertations | 2015

Kramer M, 2015, Air demand of impulse turbines in counter pressure operation, University of Stuttgart, http://dx.doi.org/10.18419/opus-651

Reports | 2013

Kramer M; Wieprecht S, 2013, Stability of cars in urban floodings

Conference Papers | 2013

Kramer M, 2013, 'Energy recovery in drinking water supply systems - experimental investigations on hydraulic turbines', Graz, Austria, presented at Proceedings of the 15th young hydraulic scientists meeting, Graz, Austria, 31 July 2013 - 02 August 2013

Conference Papers | 2012

Kramer M; Wieprecht S, 2012, 'Implementation studies of small energy converters in water supply systems', Munich, Germany, presented at Proceedings of the 2nd IAHR Europe Conference, Munich, Germany, 27 June 2012 - 29 June 2012

Conference Papers | 2012

Kramer M; Wieprecht S, 2012, 'Investigations on micro-hydro turbines in drinking water supply systems', Stuttgart, presented at Proceedings of the 26th colloquium on water supply systems, Stuttgart, 16 February 2012 - 16 February 2012

Reports | 2012

Kramer M; Wieprecht S, 2012, Implementation studies of small energy converters in water supply systems, TB 09/2012

Conference Papers | 2011

Kramer M; Wieprecht S, 2011, 'Coupled traffic- and hydrodynamic modelling for traffic control during evacuations', Hannover, Germany, presented at Proceedings of the 13th young hydraulic scientists meeting, Hannover, Germany, 03 August 2011 - 06 August 2011

Reports | 2010

Kramer M; Wieprecht S, 2010, Physical model investigations on the hydropower plant Metzingen at the Erms, TB 04/2010

Open Fund Research, State Key Laboratory, Sichuan University
UNSW Rector Funded Visiting Fellowship (RFVF)
Research Infrastructure Scheme (RIS): Combined open-channel/wave flume
Substantial merit-based start up grant (UNSW Canberra)
Establishment award (UNSW Canberra)
DFG research fellowship ’Air-water mass transfer at hydraulic structures’

If you want to know more about my research, please refer to my Google Scholar or Research Gate. Topics of interest are in the field of open channel flow with a focus on air-entrainment, flow measurement instrumentation, energy dissipation and design of hydraulic structures. Other areas of interest are listed below:

Hydrodynamics of open-channel flows
Hydraulic structures (smooth and stepped chutes, control structures)
Multiphase flows
Flow measurement instrumentation
Signal processing (phase-detection probes and image-based velocimetry)
Mass transfer processes

Professional involvement

Editorial Panel ICE Water Management
Executive member of the AFMS (Australian Fluid Mechanics Society) Canberra Chapter
IAHR Member - International Association for Hydro-Environment Engineering and Research
Reviewer for selected journals, including International Journal of Multiphase Flow (IJMF), Journal of Hydraulic Research (JHR), Journal of Hydraulic Engineering (JHE), Journal of Hydro-Environment Research (JHER) and others

My Research Supervision

Hanwen Cui (PhD candidate, joint supervision with Dr Stefan Felder)
Reilly Cox (UNSW Sydney)

My Teaching

ZEIT2602 - Hydraulic Engineering
ZEIT4604 - Hydrology and Environmental Engineering Practice
ZEIT2603 - Civil Engineering Materials

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