Orca3D Marine CFD - General
Simerics-related questions
When doing a powered run, you have the option of entering a fixed RPM (where the propeller starts at that value and remains there for the entire run), or yo...
Wed, 14 Feb, 2018 at 2:24 PM
Numerical damping is applied to Heave and Pitch by default to damp the oscillations that can result from rapid acceleration at the beginning of a run. Howev...
Thu, 31 Aug, 2023 at 10:11 AM
The most accurate simulation of a waterjet propelled vessel is done by modeling the actual waterjet geometry and including that in the simulation. This requ...
Tue, 5 Dec, 2023 at 10:54 AM
By default, simulations generated in Orca3D Marine CFD include heave and pitch dynamics, i.e., they are free to sink and trim. You can turn off either or bo...
Thu, 9 Nov, 2023 at 4:24 PM
Orca3D Marine CFD includes the ability to perform self-propelled (also known as "powered") simulations. For self-propelled simulations the thrust ...
Fri, 1 Jan, 2021 at 4:45 PM
We have used Orca3D Marine CFD to perform simulations of vessels in shallow water and have validated predictions relative to published model test data. Perf...
Mon, 27 Nov, 2023 at 7:33 AM
As engineers we've been taught that one way to solve a complex problem is to decompose it into a series of simpler problems, and then reconstitute the c...
Thu, 26 Mar, 2020 at 8:10 PM
We are often asked if it is possible and advantageous to start a resistance run with the results of a lower speed run or a self-propelled run with the re...
Thu, 29 Oct, 2020 at 11:30 PM
This article is intended to clarify the pressure definitions used by Orca3D Marine CFD. As shown in the image below, when plotting pressure distribution...
Thu, 17 Nov, 2022 at 12:34 PM
With a few modest tweaks to the default behavior of the "marine template" used in Orca3D Marine CFD, it is possible to simulate the flow around a ...
Mon, 7 Dec, 2020 at 2:47 PM