Archivio Istituzionale della RicercaDifferent methods for the evaluation of the flow forces in conical poppet valves are analyzed. The equation derived from the conservation of the fluid momentum is contrasted with a formulation obtained from the Bernoulli's equation and with computational fluid dynamics (CFD) simulations performed through two commercial codes, PumpLinx and Flow Simulation. Three different poppet angles and two flow directions are analyzed. In some operating conditions, a significant difference was found between the analytical formulation and the outcomes of the CFD simulations in case of reverse flow.
Comparison of Analytical and Numerical Methods for the Evaluation of the Flow Forces in Conical Poppet Valves with Direct and Reverse Flow / Rundo, Massimo; Altare, Giorgio. - In: ENERGY PROCEDIA. - ISSN 1876-6102. - ELETTRONICO. - 126:(2017), pp. 1107-1114. (Intervento presentato al convegno ATI 2017 - 72nd Conference of the Italian Thermal Machines Engineering Association tenutosi a Lecce nel 6-8 settembre) [10.1016/j.egypro.2017.08.261].
Comparison of Analytical and Numerical Methods for the Evaluation of the Flow Forces in Conical Poppet Valves with Direct and Reverse Flow
RUNDO, Massimo;ALTARE, GIORGIO
2017
Abstract
Different methods for the evaluation of the flow forces in conical poppet valves are analyzed. The equation derived from the conservation of the fluid momentum is contrasted with a formulation obtained from the Bernoulli's equation and with computational fluid dynamics (CFD) simulations performed through two commercial codes, PumpLinx and Flow Simulation. Three different poppet angles and two flow directions are analyzed. In some operating conditions, a significant difference was found between the analytical formulation and the outcomes of the CFD simulations in case of reverse flow.
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https://hdl.handle.net/11583/2686277
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