Abstract
Non-stationary turbulent flows are often encountered while starting or stopping a flow process. There are also designed non-stationary flow processes like the periodic flows in a reciprocating engine (also known as the piston engine) and the pulsatile flow through an prosthetic heart valve (Hirt et al.1994).
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References
Hirt F, Jud E, Zhang Zh (1994) Investigation of the local flow topology in the vicinity of a prosthetic heart valve using particle image velocimetry. 7th. Int. Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal, p 37.3
Zhang Zh, Eisele K, Hirt F (1996) Methode zur Bestimmung der Turbulenzgrößen in instationären Strömungen aus LDA-Messungen. 5. GALA-Fachtagung, Lasermethoden in der Strömungsmesstechnik, Berlin, Deutschland, pp 10.1–10.4
Zhang Zh, Eisele K, Hirt F (1997) The influence of phase-averaging window size on the determination of turbulence quantities in unsteady turbulent flows. J Exp Fluids 22:265–267
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Zhang, Z. (2010). Non-stationary Turbulent Flows. In: LDA Application Methods. Experimental Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13514-9_11
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DOI: https://doi.org/10.1007/978-3-642-13514-9_11
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