Search results

The plume model used in this paper was simulated using a computation fluid dynamic (CFD) software package, FLUENT (Fluent, Inc.).
CFD is used to generate the flow.
Compared with the static plume model, the simulated plume in CFD is more precise because the airflow velocity and odor concentrations are estimated throughout the space of interest [7].
Simulation experiments are carried out, and the comparative result is illustrated.
Lu, “A simulation framework for plume-tracing research,” Proceedings of ACRA.

Hydrodynamic Performance Analysis of Hubless Rim-Driven Propulsors ZHANG Shuai, ZHU Xi, ZHOU Zhen-long Department of Ship Engineering, Naval University of Engineering, Wuhan, China ,430033 zhs309@126.com, zhuxi816@163.com, zhouzhenlong.ok@163.com Keywords: Hubless Rim-Driven Propulsors, design, hydrodynamic performance, Computational fluid dynamics (CFD) Abstract: Due to no design guidelines available for the hubless propeller, based on the relative inflow velocities together with blade root strength considerations, the Ka –series propeller’s blade geometry was re-designed with an inversion of the thickness distribution of the sections.
Cao et al. [4], Hu et al. [5], also developed a hubless rim driven thruster and CFD prediction method.
Meshing technique and Boundary conditions To conduct the open water characteristic simulation, the computation domain is split into global stationary part and rotary part which contains the HRDP, as shown in Fig.5.
CFD Prediction of rim-driven thruster hydrodynamics performance.

CFD (Computational Fluid Dynamics) software was applied to analyze the major influencing factors of the robot’s mechanical properties.
In this paper, a CFD software - Fluent is utilized for the fluid-structure interaction (FSI) simulation.
Parameter settings in the simulation.
Characteristic parameters simulation.
, could be confirmed by simulation or experiment.

The result of numerical simulation is consistent with that of analytical calculation.
Fig.1 Cavitation jet noxxle Numerical Simulation Turbulence Model.
The numerical simulations of three widely used cavitation nozzles (Helmholtz nozzle, organ pipe nozzle and angle nozzle) are studied.
The best nozzle is selected by comparing the simulation results.
Wang: Computational Fluid Dynamics--Principles and Applications of CFD.

To address this, a three-dimensional computational fluid dynamic (CFD) simulation was presented to investigate the effect of swirl flow on the cold flow characteristic of entrained flow gasifier.
Our numerical simulation provides an effective way for researchers or engineers to optimize and scale up the gasifier and nozzle.
The simulation region was the whole gasifier, which is divided into a group of hexahedral structured meshes.
Conclusion A cold condition numerical simulation of the swirl flow effect on the entrained flow gasifier flow characteristic was presented.
The swirl intensity distribution along the axial was calculated from the simulation results.

Simulation of Heat Flux Effect in Straight Heat Pipe as Passive Residual Heat Removal System in Light Water Reactor using RELAP5 Mod 3.2 M.
Straight heat pipe used in the simulation is wickless with 0.1 m of diameter and 6 m of length.
The objective of this simulation is to study the characteristics of straight heat pipe used in the experimental work.
Ferng, "Modeling strategies to compute natural circulation using CFD in a VHTR after a LOFA," in ASME 2012 International Mechanical Engineering Congress and Exposition, 2012, pp. 2341-2351
Alsairafi, "CFD modeling of flow and heat transfer in a thermosyphon," International Communications in Heat and Mass Transfer, vol. 37, pp. 312-318, 2010

CFD model Based on the experimental results operated by Zhang[7], the commercial CFD code Star CCM+ is used to analysis the columnar sodium combustion in a closed burner.
Based on the experimental results listed on the reference 7, the commercial CFD code Star CCM+ is used to analysis the columnar sodium combustion in a closed burner.
But this process was not considerate in simulation.
And the difference existed between the simulation and refference7.
The numerical simulation was carried out absolutely according to test condition.

Previous work of Michelassi et al.[1] demonstrated that Large Eddy Simulation (LES) do have the capability of transition prediction and separated flow simulation.
Numerical simulation results are illustrated in Fig.  6.
Zahle, 3D CFD computations of transitional flows using DES and a correlation based transition model[J], Wind Energ. 14(2011) 77-90
Strelets, Detached Eddy Simulation of Massively Separated Flows.
Langtry, A Correlation-Based Transition Model using Local Variables for Unstructured Parallelized CFD codes. 2006 [9] R.

In this paper, a deep-well centrifugal pump impeller with a small rear shroud was studied by simulation and test.
Two stages deep well centrifugal pump was simulated by means of a commercial CFD software that solved the Navier-Stokes equations for three-dimensional steady flow.
The flow field and the static pressure distribution in the impellers obtained by steady numerical simulation were analyzed.
By manufacturing and testing, the test results was acquired, and then compared with the predicting data of the numerical simulation.
This confirmed the feasibility of predict the pump performance by numerical simulation method.

The core modules of the platform is the physical property simulation modules.
The function of data transfer and automatic simulation is realized by secondary development of commercial simulation software.
The solver end comprises finite element solvers for different physical fields, including commercial software, such as Fluent for the heat flow field, Ansys for the electromagnetic field and CFD-ACE for the plasma field, and self-developed simulation software[2].
Simulation Example.
Multi-Fields Modeling, Processing Simulation and Design of IC Equipments[J].