- Aberle, J., Eikenberg, R., Branß, T., & Henry, P.-Y. (2021). Technical note: On the production and accuracy of CNC-manufactured hydraulic scale models. Water, 13(7), 916. https://doi.org/https://doi.org/10.3390/w13070916
- Aberle, J., Henry, P.-Y., Kleischmann, F., Navaratnam, C. U., Vold, M., Eikenberg, R., & Olsen, N. R. B. (2020). Experimental and numerical determination of the head loss of a pressure driven flow through an unlined rock-blasted tunnel. Water, 12(12), 3492. https://doi.org/https://doi.org/10.3390/w12123492
- Andersson, L. R., Hellström, J. G. I., Andreasson, P., & Lundström, T. S. (2019). Numerical investigation of a hydropower tunnel: Estimating localised head-loss using the Manning equation. Water, 11(8), 1562. https://doi.org/https://doi.org/10.3390/w11081562
- Andersson, L. R., Larsson, I. A. S., Hellström, J. G. I., Burman, A. J., & Andreasson, P. (2021). Localized roughness effects in non-uniform hydraulic waterways. Journal of Hydraulic Research, 59(1), 100–108. https://doi.org/https://doi.org/10.1080/00221686.2020.1744744
- Basnet, C. B., & Panthi, K. K. (2018). Roughness evaluation in shotcrete-lined water tunnels with invert concrete based on cases from Nepal. Journal of Rock Mechanics and Geotechnical Engineering, 10(1), 42–59. https://doi.org/https://doi.org/10.1016/j.jrmge.2017.07.006
- Chung, D., Hutchins, N., Schultz, M. P., & Flack, K. A. (2021). Predicting the drag of rough surfaces. Annual Review of Fluid Mechanics, 53(1), 439–471. https://doi.org/https://doi.org/10.1146/annurev-fluid-062520-115127
- Colebrook, C. F., Lamont, P. A., Ackers, P., Rahm, L., Aitken, P. L., Roberts, C. M., Davis, C. V., Neilson, A. O. H., Lacey, G., Thinessard, G., Vail, A. J., Blackmore, W. E., Francis, J. R. D., Gerrard, R. T., Wolf, P. O., & Danel, P. (1959). Discussion. The flow of water in unlined, lined, and partly lined rock tunnels. Proceedings of the Institution of Civil Engineers, 12(4), 523–562. https://doi.org/https://doi.org/10.1680/iicep.1959.12106
- Ferguson, R. I., Hardy, R. J., & Hodge, R. A. (2019). Flow resistance and hydraulic geometry in bedrock rivers with multiple roughness length scales. Earth Surface Processes and Landforms, 44, 2437–2449. https://doi.org/https://doi.org/10.1002/esp.4673
- Flack, K. A. (2018). Moving beyond Moody. Journal of Fluid Mechanics, 842, 1–4. https://doi.org/https://doi.org/10.1017/jfm.2018.154
- Henry, P.-Y., Aberle, J., Navaratnam, C. U., & Rüther, N. (2018). Hydraulic physical model production with Computer Numerically Controlled (CNC) manufacturing techniques. E3S Web of Conferences, 40, 05065. https://doi.org/https://doi.org/10.1051/e3sconf/20184005065
- Mankoff, K. D., Gulley, J. D., Tulaczyk, S. M., Covington, M. D., Liu, X., Chen, Y., Benn, D. I., & Głowacki, P. S. (2017). Roughness of a subglacial conduit under Hansbreen, Svalbard. Journal of Glaciology, 63(239), 423–435. https://doi.org/https://doi.org/10.1017/jog.2016.134
- Moody, L. F. (1944). Friction factors for pipe flow. Transactions of the AMSE, 66(8), 671–684.
- Navaratnam, C. U., Aberle, J., Qin, J., & Henry, P.-Y. (2018). Influence of gravel-bed porosity and grain orientation on bulk flow resistance. Water, 10(5), 561. https://doi.org/https://doi.org/10.3390/w10050561
- Nikora, V. I., Stoesser, T., Cameron, S. M., Stewart, M., Papadopoulos, K., Ouro, P., McSherry, R., Zampiron, A., Marusic, I., & Falconer, R. A. (2019). Friction factor decomposition for rough-wall flows: theoretical background and application to open-channel flows. Journal of Fluid Mechanics, 872, 626–664. https://doi.org/https://doi.org/10.1017/jfm.2019.344
- Pitorac, L., Vereide, K., & Lia, L. (2020). Upgrading hydropower plants to pump storage plants: a hydraulic scale model of the tunnel system. Proceedings 8th IAHR international symposium on hydraulic structures ISHS2020, Santiago, Chile. https://doi.org/https://doi.org/10.14264/uql.2020.602
- Priha, S. (1969). Hydraulic properties of small unlined rock tunnels. Journal of the Hydraulics Division, 95(4), 1181–1210. https://doi.org/https://doi.org/10.1061/JYCEAJ.0002120
- Rahm, L. (1953). Flow problems with respect to intakes and tunnels of Swedish hydro-electric power plants. In Bulletin 36 (pp. 143–209). Institution of Hydraulics at the Royal Institute of Technology. Stockholm, Sweden Section 3.
- Rahm, L. (1958). Friction losses in Swedish rock tunnels. Water Power, 10, 457–464.
- Reinius, E. (1970). Head losses in unlined rock tunnels. Water Power, July/August 1970, 246–252.
- Rennels, D. C., & Hudson, H. M. (2012). Pipe flow: A practical and comprehensive guide. Wiley.
- Rønn, P.-E., & Skog, M. (1997). New method for estimation of head loss in unlined water tunnels. In E. Broch, D.K. Lysne, N. Flatabø, & E. Helland-Hansen (Eds.), Hydropower (pp. 675–682). Balkema.
- Schlichting, H., & Gersten, K. (2006). Grenzschicht-Theorie. 10. überarbeitete Auflage. Springer.
- Smart, G. M., Aberle, J., Duncan, M., & Walsh, J. (2004). Measurement and analysis of alluvial bed roughness. Journal of Hydraulic Research, 42(3), 227–237. https://doi.org/https://doi.org/10.1080/00221686.2004.9728388
- Watson, C., & Marshall, J. (2018). Estimating underground mine ventilation friction factors from low density 3D data acquired by a moving LiDAR. International Journal of Mining Science and Technology, 28(4), 657–662. https://doi.org/https://doi.org/10.1016/j.ijmst.2018.03.009
- Yen, B. C. (2002). Open channel flow resistance. Journal of Hydraulic Engineering, 128(1), 20–39. https://doi.org/https://doi.org/10.1061/(ASCE)0733-9429(2002)128:1(20)
Journal of Hydraulic Research
Volume 60, 2022 - Issue 3
Technical Note
Directional dependency of flow resistance in an unlined rock blasted hydropower tunnel
Jochen Aberlea (IAHR Member), Professor, Leichtweiß-Institute for Hydraulic Engineering and Water Resources, Technische Universität Braunschweig, Braunschweig, Germany.Correspondence[email protected]
https://orcid.org/0000-0002-5435-2832View further author information
https://orcid.org/0000-0002-5435-2832View further author information, Till Branßb (IAHR Member), Research Associate, Leichtweiß-Institute for Hydraulic Engineering and Water Resources, Technische Universität Braunschweig, Braunschweig, Germany. Email: [email protected]https://orcid.org/0000-0002-0288-9611View further author information
https://orcid.org/0000-0002-0288-9611View further author information, , Pierre-Yves Henryd Research Scientist, Department of Ship and Ocean Structures, SINTEF Ocean, Trondheim, Norway. Email: [email protected]https://orcid.org/0000-0003-3714-254XView further author information
https://orcid.org/0000-0003-3714-254XView further author information &