February 18, 2021 at 3:01 pmsrivastavatanujSubscriberHello,nWhen we define velocity we use something like u for X-direction velocity, u for Y-direction velocity etc. If I am defining rotational velocity of the whole fluid zone using ZONE MOTION macro then will the meaning remain the same for angular velocity or w will become velocity of XY plane (rotation about Z), w become velocity of the YZ plane (rotation about X). Am I correct? I am asking this as I am getting this behavior while using UDF.n
February 18, 2021 at 3:18 pmRobAnsys EmployeeAssuming it's the same as here https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v211/en/flu_udf/flu_udf_sec_define_aniso_diffusivity.html and the panels are similar for a velocity inlet nnThe coordinates will be , ,  x, y, z or radial, tangential, axialnI'd advise checking carefully though! n
February 18, 2021 at 3:27 pm
February 18, 2021 at 4:57 pmRobAnsys EmployeeCheck what the centre line is defined as in the cell zone. Default is origin in 0, 0, 0 axis in z-axis. n
February 19, 2021 at 12:57 pm
February 19, 2021 at 1:19 pmRobAnsys EmployeeThat's the cell zone, what are you doing? n
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