这种做法通过平衡时间步长和压力迭代次数去优化运行时间。然而,有时时间步长被过分地减小,于是就造成了 Time-step size < dtmin 的情况出现。 2. 建议的解决方案 首先,查看运行器中的 " stability limit & time-step size "。(同样可以在求解文件 hd3msg.dat 中查看)如果时间步长一直小于稳定极限,求解器会一直...
如题，不知为什么？deform求解的过程中老是出现，然后求解器自动调小time step，可是还是无论自动调到多...
如题，不知为什么？deform求解的过程中老是出现，然后求解器自动调小time step，可是还是无论自动调到多...
Flowchart of ANSYS thermal-structure coupling process Schematic diagram of finite element model for a ship deck Sectional view of T-shaped element Comparison of temperature field distribution of deck Temperature measuring points in the FDS model ...
if there are abnormal velocity or sound speeds. If Lagrange-Lagrange interaction is involved in the calculation, you need to check the gap size and gap type. If internal gap is used, the time step is usually calculated from the gap size because it is the smallest. The internal gap...
What is the significance/understanding of the pseudo auto time step in Ansys Fluent? For Ex: 0.1, 1.0, 10 what will happen with these time scale factors in context to accuracy and convergence? Regards. March 28, 2020 at 8:43 am vinayak chauhan Subscriber Hi, pseudo time-stepping also ...
So, what value should i use for my time-step calculations ? Also, i have seen some people are using cube root method as well, can someone explain this method as well, and are there any other methods that ANSYS has recommended to calculate time-step ? Highly appreciate for the guidance....
One of the top explicit simulation programs in the industry, Ansys LS-DYNA, is utilised for applications like drop testing, impact and penetration, smashes and crashes, occupant safety, and more. During each time step, LS-DYNA traverses every node in the model to determine the solution in a...
请问DYNA这个报错是什么原因,时间步长改了还是不行啊,另外有些糊涂了,我的计算时间是2.2秒,设置计算时间那里直接填2.2没问题吧 还有个问题,如图二,我要给叶轮施加一个竖直向下的载荷和一个绕轴心1rad/s的转到,并且给叶轮添加约束,使其既可以向下、向右位移,也可以绕轴心转到,其余自由度约束住,在LSPP里面怎么设置...
in the load increments between steps. When this is set the Initial time step size of a step ...