大连海事大学学报
大連海事大學學報
대련해사대학학보
JOURNAL OF DALIAN MARITIME UNIVERSITY
2014年
4期
19-24
,共6页
何巍%高瑞%孙鹏%钟兢军%叶正华
何巍%高瑞%孫鵬%鐘兢軍%葉正華
하외%고서%손붕%종긍군%협정화
船舶甲板%气流场%数值模拟%直升机%起降条件
船舶甲闆%氣流場%數值模擬%直升機%起降條件
선박갑판%기류장%수치모의%직승궤%기강조건
vessel deck%flow field%numerical simulation%helicopter%take off and landing condition
采用三维数值模拟方法对不同风向条件下的船舶外流场进行求解,结合直升机起降条件限制,分析甲板气流场参数变化与风向的关系以及对直升机起降的影响;研究不同停机坪上方气动参数分布及其与上层建筑相对位置的关系。结果表明,船首附近长期受气流绕流的影响不适合直升机起降;右舷来风时,气流绕流上层建筑形成的尾流对甲板大部分区域造成影响,不适合直升机起降;左舷来风时甲板上大部分区域均满足起降条件。
採用三維數值模擬方法對不同風嚮條件下的船舶外流場進行求解,結閤直升機起降條件限製,分析甲闆氣流場參數變化與風嚮的關繫以及對直升機起降的影響;研究不同停機坪上方氣動參數分佈及其與上層建築相對位置的關繫。結果錶明,船首附近長期受氣流繞流的影響不適閤直升機起降;右舷來風時,氣流繞流上層建築形成的尾流對甲闆大部分區域造成影響,不適閤直升機起降;左舷來風時甲闆上大部分區域均滿足起降條件。
채용삼유수치모의방법대불동풍향조건하적선박외류장진행구해,결합직승궤기강조건한제,분석갑판기류장삼수변화여풍향적관계이급대직승궤기강적영향;연구불동정궤평상방기동삼수분포급기여상층건축상대위치적관계。결과표명,선수부근장기수기류요류적영향불괄합직승궤기강;우현래풍시,기류요류상층건축형성적미류대갑판대부분구역조성영향,불괄합직승궤기강;좌현래풍시갑판상대부분구역균만족기강조건。
3D numerical simulation was used to solve the flowfield of vessel with different wind directions.Helicopter takingoff and landing conditions were concerned to analyze the rela -tion between flow parameters on the deck and wind directionand its influence on helicopters.The relation between flow parametersabove the parking apron and its relative position tothe superstructure were also discussed.Results show that theair conditions near the bow are not suitable for helicopterlanding.When wind comes from the star board, the air wakeflowing over the superstructure has great effect on the deckconditions, which are not suitable for helicopter landing .While wind comes from the larboard, the air conditions meetthe landing conditions.