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- 저자 : Wujie Jiang (검색결과 3 건)
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Optimization of a twin-skeg container vessel by parametric design and CFD simulations
Jingpu Chen,Jinfang Wei,Wujie Jiang 대한조선학회 2016 International Journal of Naval Architecture and Oc Vol.8 No.5
The model tests results for the original lines of an 10000TEU container vessel show that the delivered power is higher and could not satisfy the requirement of energy saving effects and design targets. In this paper, the lines optimization of the 10,000 twin-skeg container vessel was carried out by parametric modeling and CFD simulations. At first, the CFD methods for twin-skeg hull form were validated by the comparison with the experimental results. Then more than one hundred parameters were adopted for the establishment of the fully parametric model. Based on the parametric model of the twin-skeg container vessel, the preliminary optimization was carried out by tight coupling of FRIENDSHIPFRAMEWORK with potential flow of SHIPFLOW. Then several important parameters related to the after part of twin-skeg vessel were investigated by viscous flow computation. The final optimized variant PM11, which the total resistance was reduced by about 8.3% in model scale, is obtained within the constraints of general arrangement. And the model tests for variant PM11 was carried out in CSSRC, which shows that the resistance of optimized variant PM11 is decreased by about 8.6%.
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Optimization of a twin-skeg container vessel by parametric design and CFD simulations
Chen, Jingpu,Wei, Jinfang,Jiang, Wujie The Society of Naval Architects of Korea 2016 International Journal of Naval Architecture and Oc Vol.8 No.5
The model tests results for the original lines of an 10000TEU container vessel show that the delivered power is higher and could not satisfy the requirement of energy saving effects and design targets. In this paper, the lines optimization of the 10,000 twin-skeg container vessel was carried out by parametric modeling and CFD simulations. At first, the CFD methods for twin-skeg hull form were validated by the comparison with the experimental results. Then more than one hundred parameters were adopted for the establishment of the fully parametric model. Based on the parametric model of the twin-skeg container vessel, the preliminary optimization was carried out by tight coupling of FRIENDSHIP-FRAMEWORK with potential flow of SHIPFLOW. Then several important parameters related to the after part of twin-skeg vessel were investigated by viscous flow computation. The final optimized variant PM11, which the total resistance was reduced by about 8.3% in model scale, is obtained within the constraints of general arrangement. And the model tests for variant PM11 was carried out in CSSRC, which shows that the resistance of optimized variant PM11 is decreased by about 8.6%.
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Zhengwei Luo,Lei Li,Mulin Guo,Hui Jiang,Wenhua Geng,Wuji Wei,Zhouyang Lian 한국섬유공학회 2020 Fibers and polymers Vol.21 No.12
In this work, a new strategy was developed to prepare Cr(VI)-imprinted polypropylene (PP) fibers-based materialsfor the adsorption of Cr(VI) from water. Granular PP was modified with dual monomers (glycidyl methacrylate (GMA) andacrylamide (AM)) by water-solid suspension grafting copolymerization. Then, this fibers morphology was obtained by meltblowing. Hence, the preparation steps of the fibrous Cr(VI)-imprinted adsorbent involved surface ion-imprinting andcrosslinking. The influence of the grafting conditions on the grafting percentage was investigated. The maxima graftingpercentages of GMA and AM were 16.4 and 10.6 %, respectively. The chemically modified products showed good mobilityand stability, thus meeting the requirements of melt-blowing method. The prepared Cr(VI)-imprinted polymers showed amaximum adsorption capacity to Cr(VI) of 43.2 mg/g at pH 3. The adsorption data were well fitted by the pseudo-secondorderand Langmuir adsorption models. The adsorbent showed good selectively toward Cr(VI) in a mixed solution containingCu(II) and SO42−. The X-ray photoelectron spectroscopy demonstrated that the adsorbed Cr(VI) was partly reduced to Cr(III).
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