By Dr Matthias Kramer

Conference Papers

Lahiru MJD; Bingo MN; Mulligan S; Felder S; Kramer M; Eoghan C, 2025, 'NUMERICAL ANALYSIS OF AIR ENTRAINMENT OF A PLUNGING JET FLOW UNDER DIFFERENT VISCOSITY LEVELS OF FLUID', in Proceedings of the IAHR World Congress, pp. 1988 - 1991

Kramer M, 2025, 'THEORETICAL FOUNDATIONS ON SURFACE DETACHMENT OF FLOATING PLASTICS', in Proceedings of the IAHR World Congress, pp. 1492 - 1493

Bingo MN; Lahiru MJD; Mulligan S; Felder S; Kramer M; Clifford E, 2025, 'VISCOSITY EFFECTS ON AERATION EFFICIENCY IN PLUNGING JETS', in Proceedings of the IAHR World Congress, pp. 2321 - 2324

Sabourishirazi A; Liow J-L; Ghodrat M, 2024, 'A novel correlation for mean hydraulic diameter in single-embossed channels of pillow-plate heat exchangers', in Kramer M; Niven R; Ghodrat M; Liow J (eds.), Proceedings of the 24th Australasian Fluid Mechanics Conference, Australasian Fluid Mechanics Society, Canberra, presented at 24th Australasian Fluid Mechanics Conference, Canberra, 01 December 2024 - 05 December 2024, http://dx.doi.org/10.5281/zenodo.14213525

Sabourishirazi A; Liow J-L; Ghodrat M, 2024, 'Evaluation of geometric parameter effects on outer channel mean hydraulic diameter of pillow-plate heat exchangers', in Kramer M; Niven R; Ghodrat M; Liow J (eds.), Proceedings of the 24th Australasian Fluid Mechanics Conference, Australasian Fluid Mechanics Society, Canberra, presented at 24th Australasian Fluid Mechanics Conference, Canberra, 01 December 2024 - 05 December 2024, http://dx.doi.org/10.5281/zenodo.14213461

Li A; Abpeikar S; Wang M; Frankcombe T; Ghodrat M, 2024, 'An Exploratory Review on Lithium-Ion Battery Fire Risk Mitigation Using Deep Learning Approaches', in Kramer M; Niven R; Ghodrat M; Liow J-L (eds.), Proceedings of the 24th Australasian Fluid Mechanics Conference, Australasian Fluid Mechanics Society (AFMS), Canberra, presented at The 24th Australasian Fluid Mechanics Conference (AFMC2024), Canberra, 01 December 2024 - 05 December 2024, http://dx.doi.org/10.5281/zenodo.14213411

Condo-Colcha F; Niven R; Kramer M, 2024, 'Effects of aspect ratio on the incipient motion of plastics in open-channel flows', Canberra, Australia, presented at AFMC2024, Canberra, Australia, 01 December 2024, http://dx.doi.org/10.5281/zenodo.14213323

Taghavi N; Niven R; Kramer M; Paull D, 2024, 'Model Ranking Metrics for Groundwater Vulnerability Assessment Using Bayesian Inference', Canberra Australia, presented at AFMC2024, Canberra Australia, 01 December 2024, http://dx.doi.org/10.5281/zenodo.14213576

Wickramarachchi C; Niven R; Kramer M, 2024, 'On the boundary conditions for Lagrangian plastic transport models', Canberra, Australia, presented at AFMC2024, Canberra, Australia, 01 December 2024, http://dx.doi.org/10.5281/zenodo.14213325

Kramer M, 2024, 'A physical description of air concentration distributions in self-aerated flows', in Proceedings of the 10th IAHR International Symposium on Hydraulic Structures Ishs 2024, pp. 645 - 650, http://dx.doi.org/10.3929/ethz-b-000676010

Felder S; Kramer M; Hohermuth B; Valero D, 2024, 'Instrumentation opportunities to improve the design and safety of hydraulic structures', in Hydrology and Water Resources Symposium Hwrs 2024, pp. 1048 - 1051

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

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

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

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

Cui H; Felder S; Kramer M, 2022, 'Effects of Underlying Soil Roughness on Flow Patterns in Grassed Waterways', in Ortega-Sanchez M (ed.), Proceedings of the IAHR World Congress, IAHR-INT ASSOC HYDRO-ENVIRONMENT ENGINEERING RESEARCH, Granada, Spain, presented at 39th IAHR World Congress, Granada, Spain, 19 June 2022 - 24 June 2022, http://dx.doi.org/10.3850/IAHR-39WC252171192022581

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

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

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

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

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

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

Felder S; Montano Luna L; Peirson W; Kramer M; Cui H, 2018, 'Effect of inflow conditions on the air-water flow properties in hydraulic jumps', in Proc. of the 21st Australasian Fluid Mechanics Conference, Adelaide, presented at 21st Australasian Fluid Mechanics Conference, Adelaide, 10 December 2018 - 13 December 2018, http://dx.doi.org/10.26190/unsworks/27044

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

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, http://dx.doi.org/10.26190/unsworks/27065

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, http://dx.doi.org/10.26190/unsworks/27068

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, http://dx.doi.org/10.26190/unsworks/27064

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, http://dx.doi.org/10.26190/unsworks/27067

Conference Abstracts

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, http://dx.doi.org/10.26190/unsworks/28331

Reports

Kramer M, 2020, Air-water flows at hydraulic structures: Experimental investigations of interfacial characteristics and air-water mass transfer, German Research Foundation, Technical report, School of Engineering and Information Technology (SEIT), UNSW Canberra, KR 4872/2-1, http://dx.doi.org/10.13140/rg.2.2.19550.25928

Kramer M; Wieprecht S, 2015, Efficient energy recovery in water supply systems, TB01/2015, http://dx.doi.org/10.26190/unsworks/27070

Kramer M; Wieprecht S, 2013, Stability of cars in urban floodings, http://dx.doi.org/10.26190/unsworks/27063

Kramer M; Wieprecht S, 2012, Implementation studies of small energy converters in water supply systems, TB 09/2012, http://dx.doi.org/10.26190/unsworks/27069

Kramer M; Wieprecht S, 2010, Physical model investigations on the hydropower plant Metzingen at the Erms, TB 04/2010, http://dx.doi.org/10.26190/unsworks/27071

Theses / Dissertations

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

Working Papers

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

Wickramarachchige C; Condo-Colcha F; Niven R; Kramer M, 2026, Rethinking Vertical Transport of Buoyant Plastics in Open Channels, http://dx.doi.org/10.31223/x5w74d

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

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

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

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

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

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

Other

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

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