An effective CFD approach for marine-vehicle maneuvering simulation based on the hybrid reference frames method

Abstract

a b s t r a c tThe computational efficiency of CFD on maneuverability simulation poses a great difficulty resulting in its restricted applications. A hybrid reference frames method is established that combines the rotating reference frame method and an added momentum source method. The computational domain is separated into two parts under the rotating reference frame and the inertial frame respectively. A single mesh is needed for all conditions of a testing model such as different rotating arm radius, pitch angles and drift angles. The validation is carried out based on the numerical simulations on the flow fields around the SUBOFF models including sterns and full appended models. Results show that the stability derivatives of the yawing moment and yawing force agree well with the experimental data. Using a dimensional analysis method, the influences of the rotating arm radius and linear velocity are investigated. The similarity is maintained when the radius is constant, and the rotating effect performs strongly when the radius is small. The effects of pitch angle and drift angle are also discussed when the linear velocity is fixed with the fully appended SUBOFF model.

A technique for efficient computation of steady yaw manoeuvres using CFD

“…With such an approach, it is possible to perform steady CFD computations which make it cost effective compared to unsteady computations. Also other approaches are used, such as a hybrid reference frame method of Wu et al [39], but those do not seem to be widely adopted in the CFD community yet.…”

Estimation of Hydrodynamic Derivatives of Full-Scale Submarine using RANS Solver

“…In addition, Pan et al(2012) proposed an approach for simulating the small drift motion and the harmonic motion of the same submarine with full appendage using the unsteady RANS-based simulation and the dynamic mesh technique. To solve the rotational motion by CFD method, Wu et al(2015) employed the hybrid reference frames method to model the circular motion of the DARPA SUBOFF submarine. These researches show that the results of the RANS-based simulation are in good agreement with the experimental data.…”

Investigation and optimization of appendage influence on the hydrodynamic performance of AUVs

“…The speed range for most AUVs ranges from 3 to 5 kn; therefore, the first two speeds were used for appendage optimization for subsequent chapters, and the last three speeds were used to verify the accuracy of the calculation method. Works by Wu [10] and Dantas and Barros [11], and our previous investigation [6,12] were referred to conducted the validation procedure. As shown in Fig.…”