Application of CFD in ship engineering design practice and ship hydrodynamics

Zhang, Zhirong; Liu, Hui; Zhu, Song‐Ping; Zhao, Feng

doi:10.1016/s1001-6058(06)60072-3

Cited by 52 publications

(28 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although computations started in earlier 60's solving the simplified boundary layers Equations [16], followed by methods based on potential flow theories and those to solve Reynolds Navier-Stoke Equations in the last two decades [3], experimental data are still required to validate computational results.…”

Section: Resultsmentioning

confidence: 99%

Development of Catamaran Fishing Vessel

Setyawan¹,

Utama²,

Murdijanto³

et al. 2010

JTS

View full text Add to dashboard Cite

Abstract   Multihull due to a couple of advantages has been the topic of extensive research work in naval architecture. In this study, a series of investigation of fishing vessel to save fuel energy was carried out at ITS. Two types of ship models, monohull (round bilge and hard chine) and catamaran, a boat with two hulls (symmetrical and asymmetrical) were developed. Four models were produced physically and numerically, tested (towing tank) and simulated numerically (CFD code). The results of the two approaches indicated that the catamaran mode might have drag (resistance) smaller than those of monohull at the same displacement. A layout of catamaran fishing vessel, proposed here, indicates the freedom of setting the deck equipments for fishing vessel.

show abstract

Section: Resultsmentioning

confidence: 99%

Development of Catamaran Fishing Vessel

Setyawan¹,

Utama²,

Murdijanto³

et al. 2010

JTS

View full text Add to dashboard Cite

show abstract

“…ρ is fluid density, F i is body force, and Reynolds stress

is given by

The turbulence model SST k - ω is used to close above equations [ 8 ]. This model is believed to be one of the best choices to simulate turbulent flow around ship hull [ 9 ]. The model k - ω -SST is a hybrid model which employs k - ω model near the wall and a k - ϵ model, transformed to resemble a k - ω model, outside of near the wall region.…”

Section: Methodsmentioning

confidence: 99%

Ship Trim Optimization: Assessment of Influence of Trim on Resistance of MOERI Container Ship

Sherbaz

Duan

2014

The Scientific World Journal

View full text Add to dashboard Cite

Environmental issues and rising fuel prices necessitate better energy efficiency in all sectors. Shipping industry is a stakeholder in environmental issues. Shipping industry is responsible for approximately 3% of global CO2 emissions, 14-15% of global NOX emissions, and 16% of global SOX emissions. Ship trim optimization has gained enormous momentum in recent years being an effective operational measure for better energy efficiency to reduce emissions. Ship trim optimization analysis has traditionally been done through tow-tank testing for a specific hullform. Computational techniques are increasingly popular in ship hydrodynamics applications. The purpose of this study is to present MOERI container ship (KCS) hull trim optimization by employing computational methods. KCS hull total resistances and trim and sinkage computed values, in even keel condition, are compared with experimental values and found in reasonable agreement. The agreement validates that mesh, boundary conditions, and solution techniques are correct. The same mesh, boundary conditions, and solution techniques are used to obtain resistance values in different trim conditions at Fn = 0.2274. Based on attained results, optimum trim is suggested. This research serves as foundation for employing computational techniques for ship trim optimization.

show abstract

“…A direct numerical simulation of the plasma torch makes it visualized, clarifies the fluid fields inside the plasma torch, and captures these impacts, which probably brings exciting results [17,18]. Therefore, numerical simulation has been widely used in momentum transfer [19,20], heat transfer [21,22], and reactor design [23,24,25]. Colombo et al [26,27] founded three-dimensional models to investigate particles’ motion and sheath gas stream’s mixing inside the plasma reactor.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Selection of RF Thermal Plasma Hot-Wall Torch for Large-Scale Production of Nanopowders

Bai

Ouyang

et al. 2019

Materials

View full text Add to dashboard Cite

Fouling is a great problem that significantly affects the continuous operation for large-scale radio-frequency (RF) thermal plasma synthesizing nanopowders. In order to eliminate or weaken the phenomenon, numerical simulations based on FLUENT software were founded to investigate the effect of operation parameters, including feeding style of central gas and sheath gas, on plasma torches. It is shown that the tangential feeding style of central gas brings serious negative axial velocity regions, which always forces the synthesized nanopowders to “back-mix”, and further leads to the fouling of the quartz tube. Moreover, it is shown that sheath gas should be tangentially fed into the plasma reactor to further eliminate the gas stream’s back-mixing. However, when this feeding style is applied, although the negative axial velocity region is decreased, the plasma gas and kinetic energy of the vapor phase near the wall of the plasma reactor are less and lower, respectively; as a result, that plasma flame is more difficult to be arced. A new plasma arcing method by way of feeding gun instead of torch wall was proposed and put in use. The fouling problem has been well solved and plasma arcing is well ensured, and as a result, the experiment on large-scale production of nanopowders can be carried out for 8 h without any interruption, and synthesized Si and Al2O3 nanopowders exhibit good dispersion and sphericity.

show abstract

Application of CFD in ship engineering design practice and ship hydrodynamics

Cited by 52 publications

References 1 publication

Development of Catamaran Fishing Vessel

Development of Catamaran Fishing Vessel

Ship Trim Optimization: Assessment of Influence of Trim on Resistance of MOERI Container Ship

Modeling and Selection of RF Thermal Plasma Hot-Wall Torch for Large-Scale Production of Nanopowders

Contact Info

Product

Resources

About