Pressure drop across complex geometries using Ansys Fluent

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Description

This is a continuation of previous work.

In this work, I have investigated the pressure drop across complex geometries to improve the efficiency of a stirling engine.

Catia V5 is used to model the geometries and Ansys Fluent is used for the simulations.

References:

[1] Tanaka, M., Yamashita, I., Chisaka, F., and Chisaka, F., “Flow and Heat Transfer Characteristics of the Stirling Engine Regenerator in an Oscillating Flow,” Jsme International Journal Series B-fluids and Thermal Engineering, 1990.

[2] Zhao, T., Cheng, P., and Cheng, P., “Oscillatory pressure drops through a woven-screen packed column subjected to a cyclic flow,” Cryogenics, 1996.

[3] Ju, Y., Ju, Y. L., Jiang, Y., Zhou, Y., and Zhou, Y., “Experimental study of the oscillating flow characteristics for a regenerator in a pulse tube cryocooler,” Cryogenics, 1998.

[4] Smith, B. L., and Swift, G. W., “Power dissipation and time-averaged pressure in oscillating flow through a sudden area change,” The Journal of the Acoustical Society of America, Vol. 113, No. 5, 2003, pp. 2455–2463.

[5] Dellali, E., Bégot, S., Lanzetta, F., Gavignet, E., and Rauch, J.-Y., “Pressure drop analysis of oscillating flows through a miniature porous regenerator under isothermal and nonisothermal conditions,” Experimental Thermal and Fluid Science, Vol. 103, 2019, pp. 394–4053.

[6] Costa, S.-C., Tutar, M., Barreno, I., Esnaola, J.-A., Barrutia, H., García, D., González, M.-A., and Prieto, J.-I., “Experimental and numerical flow investigation of Stirling engine regenerator,” Energy, Vol. 72, 2014, pp. 800–812.

[7] O’Neill, G., and Tolley, N. S., “The complexities of nasal airflow: theory and practice,” Journal of Applied Physiology, Vol. 127, No. 5, 2019, pp. 1215–1223.

GIF source: http://animatedengines.com/vstirling.html

Image source (Slide 4): Stirling engine regenerators: How to attain over 95% regenerator effectiveness with sub-regenerators and thermal mass ratios

Image source (Slide 5): Ibrahim, Mounir, Meng Wang, and David Gedeon. "Experimental investigation of oscillatory flow pressure and pressure drop through complex geometries." 2nd International Energy Conversion Engineering Conference. 2004.

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