Conference Proceedings Paper
Steam Condensation Induced Water Hammer Simulations and Measurements for Different Pipelines in Nuclear Reactor
NURETH-14 - 2011 September 25-30
Imre Ferenc Barna (Atomic Energy Research Institute (AEKI) in the Central Physical Research Institute ( KFKI) )
György Ézsöl (Atomic Energy Research Institute (AEKI) in the Central Physical Research Institute ( KFKI) )
reactor. Our recent calculation clearly shows that the six conditions of Griffith are only necessary conditions for CIWH but not sufficient. As second results we performed calculations for various geometries and compare with the theory of Chun.
We investigate steam condensation induced water hammer (CIWH) phenomena and present theoretical results for different kind of pipelines. We analyze the process with the WAHA3 model based on two- phase flow six first-order partial differential equations that present one dimensional, surface averaged mass, momentum and energy balances. A second order accurate high-resolution shock-capturing numerical scheme was applied with different kind of limiters in the numerical calculations. At first, we present calculations for various pipelines in the VVER-440-312 type nuclear
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