Numerical Model for Mixed Region Collapse in a Stratified Fluid
نویسندگان
چکیده
Problem StatusAuthorizationIntroductionNumerical AnalysisResults and DiscussionReferencesil11ii12813
منابع مشابه
The axisymmetric collapse of a mixed patch and internal wave generation in uniformly stratified rotating fluid
We present an experimental and numerical investigation of the effect of Coriolis forces on the axisymmetric collapse of a uniform mixed region in uniformly stratified fluid. Laboratory experiments were performed on a rotating table in which a mixed patch contained initially in a hollow cylinder was released and so excited internal waves whose properties were analyzed using synthetic schlieren. ...
متن کاملNumerical Simulation of Cavitation in Mixed Flow Pump
The purpose of this study is to investigate the performance and three-dimensional behavior of the flow in a mixed flow pump and the way cavitation phenomenon is affected by different parameters such as fluid temperature, pump speed and flow rate. Computational fluid dynamic software FLUENT 6.3 was utilized to simulate the whole flow field of the pump. RNG k-ε model combined with standard wall f...
متن کاملSimulation of entrainment near a density stratified layer: Laboratory experiment and LIDAR observation
In this paper a simple qualitative model of the growth of a mixed layer adjacent to a uniform layer with a stably stratified layer is presented. The depth variations of mixed layer can be estimated from direct measurements. The Entrainment of a stably stratified layer into a turbulent mixed layer in a confined region was studied in laboratory for different Richardson numbers. The internal waves...
متن کاملThe collapse of a mixed patch in stratified fluid
Lock-release laboratory experiments are performed to examine the collapse of a localized mixed patch of fluid in a uniformly stratified ambient with constant buoyancy frequency, N. The intrusion speed is approximately 0.13NH , in which H is the depth of the mixed patch. This is consistent with the speed of intrusions released from a full-depth lock where H =H is the depth of the ambient. The ve...
متن کاملSome Comments on the Modeling of the Turbulent Wake of a Self-propelled Body in a Stratified Fluid
The modeling of the turbulent wake of a self-propelled body in a stratified fluid is discussed. The scaling parameter is taken to be the internal Froude number, using the speed and diameter of the body and Vaisala frequency of the fluid. Arguments are presented to suggest that the ratio of the time for the wake to collapse to the characteristic time of the turbulence is invariant with model sca...
متن کامل