Cavitationflow-fluent模拟空化现象.pdfVIP

Tutorial 13. Cavitating Flo w Around a Hydrofoil Intro duction: This tutorial examines the ow of water around a hy- drofoil. Using FLUENTs multiphase mo deling capability, you will b e able to predict the inception of cavitation near the leading edge of the hydrofoil. In this tutorial you will learn how to:  Set b oundary conditions for external ow  Use the cavitation mo del  Calculate a solution using the segregated solver  Use a force monitor to check solution convergence  Check the validity of the grid by plotting the distribution of + y Prerequisites: This tutorial assumes that you are familiar with the menu structure in FLUENT and that you have solved or read Tu- torial 1. Some steps in the setup and solution pro cedure will not b e shown explicitly. Problem Description: The problem considers the cavitation caused by the ow of water around a hydrofoil at an incidence angle of  = 8Æ and a free-stream velo city of 6 m/s ( U = 6). The chord length 1 is 0.05 m. The geometry of the hydrofoil is shown in Figure 13.1. c Fluent Inc. Septemb er 11, 2000 13-1 Cavitating Flo w Around a Hydrofoil α = 8° 6 m/s 0.05 m Figure 13.1: Problem Sp eci cation Preparation 1. Copy the le /fluent_inc/fluent5/tut/hydro /hydro.m sh from the FLUENT tutorial CD to your working directory. 2. Start the 2D versio