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An experimental study on the phenomenon of flow field around the limbs of cyclists 骑自行车者四肢周围流场现象的实验研究
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2023-01-01 DOI: 10.1299/jfst.2023jfst0008
Yu Chen, J. Miau, yng-ru chen
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引用次数: 0
Experimental study on aerodynamic sound generated from flow around a forward facing step 前台阶周围气流声的实验研究
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2023-01-01 DOI: 10.1299/jfst.2023jfst0020
Yoshihiro Shirasu, Yasumasa Suzuki, C. Kato
{"title":"Experimental study on aerodynamic sound generated from flow around a forward facing step","authors":"Yoshihiro Shirasu, Yasumasa Suzuki, C. Kato","doi":"10.1299/jfst.2023jfst0020","DOIUrl":"https://doi.org/10.1299/jfst.2023jfst0020","url":null,"abstract":"","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"128 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66308181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ground effect on aerodynamics of the flapping wing in different Reynolds number and flapping amplitude 地面效应对不同雷诺数和振幅下扑翼气动特性的影响
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2023-01-01 DOI: 10.1299/jfst.2023jfst0032
S. Yeh, Yi-Hsien Lee
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引用次数: 0
Does Vibration Foam Roller Influence Performance and Recovery? A Systematic Review and Meta-analysis. 振动泡沫滚轮是否影响运动表现和恢复？系统回顾与元分析》。
IF 4.1 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-03-04 DOI: 10.1186/s40798-022-00421-2
Alejandra Alonso-Calvete, Miguel Lorenzo-Martínez, Alexis Padrón-Cabo, Alexandra Pérez-Ferreirós, Anton Kalén, Cristian Abelairas-Gómez, Ezequiel Rey

Background: Foam rolling has been extensively investigated, showing benefits in performance and recovery. Recently, vibration has been added to foam rollers, with hypothesized advantages over conventional foam rollers. However, there is no systematic evidence in this regard.

Objective: To carry out a systematic review and meta-analysis about the effects of vibration foam roller (VFR) on performance and recovery.

Methods: A systematic search was conducted in PubMed/MEDLINE, Web of Science and SportDiscus according to the PRISMA guidelines. The outcomes included performance (jump, agility and strength) and recovery variables (blood flow, pain and fatigue) measured after an intervention with VFR. The methodological quality was assessed with the PEDro scale. A random-effects model was used to perform the meta-analysis.

Results: Initially, 556 studies were found and after the eligibility criteria 10 studies were included in the systematic review and 9 in the meta-analysis. There was no significant effects on jump performance (SMD = 0.14 [95% CI - 0.022 to 0.307]; p = 0.101; I2 = 1.08%) and no significant beneficial effects were reported on isokinetic strength (SMD = 0.16 [95% CI - 0.041 to 0.367]; p = 0.117; I2 = 9.7%). Recovery appears to be enhanced after VFR interventions, but agility does not seem to increase after VFR interventions.

Conclusion: This systematic review and meta-analysis suggest that VFR could have great potential for increasing jump performance, agility, strength and enhancing recovery. Further research is needed to confirm the effects of VFR on performance and recovery. Trial Registration This investigation was registered in PROSPERO with the code CRD42021238104.

背景：对泡沫滚揉进行了广泛的研究，结果表明它对运动表现和恢复有好处。最近，人们在泡沫滚筒中加入了振动，并假设振动比传统泡沫滚筒更有优势。然而，目前还没有这方面的系统性证据：对振动泡沫滚筒（VFR）对运动表现和恢复的影响进行系统回顾和荟萃分析：根据 PRISMA 准则，在 PubMed/MEDLINE、Web of Science 和 SportDiscus 中进行了系统性检索。结果包括使用 VFR 进行干预后测量的成绩（跳跃、敏捷性和力量）和恢复变量（血流量、疼痛和疲劳）。方法学质量采用 PEDro 量表进行评估。采用随机效应模型进行荟萃分析：最初共找到 556 项研究，经过资格审查后，10 项研究被纳入系统综述，9 项研究被纳入荟萃分析。这些研究对跳跃成绩没有明显影响（SMD = 0.14 [95% CI - 0.022 to 0.307]；p = 0.101；I2 = 1.08%），对等动力量也没有明显的有益影响（SMD = 0.16 [95% CI - 0.041 to 0.367]；p = 0.117；I2 = 9.7%）。经过 VFR 干预后，恢复能力似乎有所增强，但灵活性在 VFR 干预后似乎并没有提高：本系统综述和荟萃分析表明，VFR 在提高跳跃成绩、敏捷性、力量和促进恢复方面具有巨大潜力。需要进一步研究以确认 VFR 对成绩和恢复的影响。试验注册 本调查已在 PROSPERO 注册，代码为 CRD42021238104。
{"title":"Does Vibration Foam Roller Influence Performance and Recovery? A Systematic Review and Meta-analysis.","authors":"Alejandra Alonso-Calvete, Miguel Lorenzo-Martínez, Alexis Padrón-Cabo, Alexandra Pérez-Ferreirós, Anton Kalén, Cristian Abelairas-Gómez, Ezequiel Rey","doi":"10.1186/s40798-022-00421-2","DOIUrl":"10.1186/s40798-022-00421-2","url":null,"abstract":"<p><strong>Background: </strong>Foam rolling has been extensively investigated, showing benefits in performance and recovery. Recently, vibration has been added to foam rollers, with hypothesized advantages over conventional foam rollers. However, there is no systematic evidence in this regard.</p><p><strong>Objective: </strong>To carry out a systematic review and meta-analysis about the effects of vibration foam roller (VFR) on performance and recovery.</p><p><strong>Methods: </strong>A systematic search was conducted in PubMed/MEDLINE, Web of Science and SportDiscus according to the PRISMA guidelines. The outcomes included performance (jump, agility and strength) and recovery variables (blood flow, pain and fatigue) measured after an intervention with VFR. The methodological quality was assessed with the PEDro scale. A random-effects model was used to perform the meta-analysis.</p><p><strong>Results: </strong>Initially, 556 studies were found and after the eligibility criteria 10 studies were included in the systematic review and 9 in the meta-analysis. There was no significant effects on jump performance (SMD = 0.14 [95% CI - 0.022 to 0.307]; p = 0.101; I<sup>2</sup> = 1.08%) and no significant beneficial effects were reported on isokinetic strength (SMD = 0.16 [95% CI - 0.041 to 0.367]; p = 0.117; I<sup>2</sup> = 9.7%). Recovery appears to be enhanced after VFR interventions, but agility does not seem to increase after VFR interventions.</p><p><strong>Conclusion: </strong>This systematic review and meta-analysis suggest that VFR could have great potential for increasing jump performance, agility, strength and enhancing recovery. Further research is needed to confirm the effects of VFR on performance and recovery. Trial Registration This investigation was registered in PROSPERO with the code CRD42021238104.</p>","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"6 1","pages":"32"},"PeriodicalIF":4.1,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8897534/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88411945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of anticyclonic spanwise rotation on plane Couette flow at small Reynolds number 小雷诺数下反气旋展向旋转对平面Couette流动的影响
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0001
O. Iida, Kazuki Kamiya, T. Kanda
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引用次数: 0
Droplet size distribution estimation for multi-hole type gasoline DI injectors 多孔式汽油直喷器液滴尺寸分布估计
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0003
Motoyuki Abe, E. Ishii, T. Ishima
{"title":"Droplet size distribution estimation for multi-hole type gasoline DI injectors","authors":"Motoyuki Abe, E. Ishii, T. Ishima","doi":"10.1299/jfst.2022jfst0003","DOIUrl":"https://doi.org/10.1299/jfst.2022jfst0003","url":null,"abstract":"","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66306882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimization of turbulent transition delay effect using quasi-statically transforming wall roughness shape 基于准静态壁面粗糙度形状的湍流过渡延迟效应优化
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0010
Takayuki Shirosaki, M. Hirota, Y. Hattori
{"title":"Optimization of turbulent transition delay effect using quasi-statically transforming wall roughness shape","authors":"Takayuki Shirosaki, M. Hirota, Y. Hattori","doi":"10.1299/jfst.2022jfst0010","DOIUrl":"https://doi.org/10.1299/jfst.2022jfst0010","url":null,"abstract":"","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66307029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Errata: Sensitivity to the application range of buoyancy force in the diffuse-interface immersed boundary method [Journal of Fluid Science and Technology Vol. 17, No. 4 (2022), JSFT0015] 勘误:扩散界面浸入边界法对浮力应用范围的敏感性[流体科学与技术学报，Vol. 17, No. 4 (2022)， JSFT0015]
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfste01
M. Endo, Kosuke Suzuki, M. Yoshino
{"title":"Errata: Sensitivity to the application range of buoyancy force in the diffuse-interface immersed boundary method [Journal of Fluid Science and Technology Vol. 17, No. 4 (2022), JSFT0015]","authors":"M. Endo, Kosuke Suzuki, M. Yoshino","doi":"10.1299/jfst.2022jfste01","DOIUrl":"https://doi.org/10.1299/jfst.2022jfste01","url":null,"abstract":"","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66307220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of gusty flow on aerodynamic performance of multirotor drone propellers in hovering flight 阵风气流对多旋翼无人机螺旋桨悬停飞行气动性能的影响
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0013
Motonao Murakami, H. Abe, H. Aono, H. Ishikawa
{"title":"Effects of gusty flow on aerodynamic performance of multirotor drone propellers in hovering flight","authors":"Motonao Murakami, H. Abe, H. Aono, H. Ishikawa","doi":"10.1299/jfst.2022jfst0013","DOIUrl":"https://doi.org/10.1299/jfst.2022jfst0013","url":null,"abstract":"","PeriodicalId":44704,"journal":{"name":"Journal of Fluid Science and Technology","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66307356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental study on the boundary layer of the NACA16-012 hydrofoil during the cavitation disappearance phenomenon NACA16-012型水翼边界层空化消失现象的实验研究
IF 0.8 Q4 MECHANICS
Journal of Fluid Science and Technology
Pub Date : 2022-01-01 DOI: 10.1299/jfst.2022jfst0005
Koki Sugaya, Yoshiki Odaira, S. Watanabe, J. Okajima, Y. Iga
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引用次数: 1
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