Design Parametric Study of a Compound Wing-in-Ground Effect. II: Aerodynamics Coefficients

Jamei Saeed; Maimun Adi; Mansor Shuhaimi; Azwadi Nor; Priyanto Agoes

首页> 外文期刊>Journal of aerospace engineering >Design Parametric Study of a Compound Wing-in-Ground Effect. II: Aerodynamics Coefficients

【24h】

Design Parametric Study of a Compound Wing-in-Ground Effect. II: Aerodynamics Coefficients

机译：复合接地翼效应的设计参数研究。 II：空气动力学系数

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The aerodynamic behavior of the wing-in-ground effect can be affected by its configuration. This configuration is potentially the most influential parameter for the performance and stability of the wing-in-ground effect craft. As a continuation to the authors' previous works, in this research, the aerodynamic coefficients of the compound wing have been numerically investigated through the design parametric study in ground effect. The aerodynamics performances of the compound wing have been computed and the effects of various design parameters on the lift-to-drag ratio have been discussed in the previous paper. First, this paper validates the prediction method by comparing the lift coefficient of a rectangular wing with NACA 6409 airfoil for different angles of attack with an aspect ratio of 1.25 and ground clearance of 0.15. Then, the aerodynamic coefficients of the compound wing are computed over a range of various design parameters. As expected, all design parameters have effects on the aerodynamic coefficients. However, the effects of design parameters on the aerodynamic behavior of the compound wing are not equal. It was found that the span of the side wing, anhedral angle, and ground clearance have considerable effects on the ram effect pressure and the tip vortex of the compound wing. (C) 2015 American Society of Civil Engineers.

机译：机翼地面效应的空气动力学行为会受到其配置的影响。这种配置可能是对地面机翼效果飞行器的性能和稳定性影响最大的参数。作为作者先前工作的延续，本研究通过地面效应的设计参数研究对复合机翼的空气动力系数进行了数值研究。计算了复合机翼的空气动力性能，并在先前的论文中讨论了各种设计参数对升力比的影响。首先，本文通过比较直角比为1.25，离地间隙为0.15的NACA 6409翼型的矩形机翼在不同迎角下的升力系数，验证了预测方法。然后，在各种设计参数的范围内计算复合机翼的空气动力系数。正如预期的那样，所有设计参数都会对空气动力学系数产生影响。但是，设计参数对复式机翼空气动力学性能的影响并不相同。结果发现，侧翼的跨度，反角和离地间隙对撞角压力和复合翼的尖端涡流有相当大的影响。（C）2015年美国土木工程师学会。

著录项

来源
《Journal of aerospace engineering》 |2016年第1期|04015023.1-04015023.14|共14页
作者
Jamei Saeed; Maimun Adi; Mansor Shuhaimi; Azwadi Nor; Priyanto Agoes;
展开▼
作者单位

Persian Gulf Univ, Dept Marine Engn, Fac Engn, Bushehr, Iran|Univ Teknol Malaysia, Fac Mech Engn, Marine Technol Ctr, Skudai 81310, Johor, Malaysia;

Univ Teknol Malaysia, Fac Mech Engn, Marine Technol Ctr, Skudai 81310, Johor, Malaysia;

Univ Teknol Malaysia, Fac Mech Engn, Dept Aeronaut Engn, Skudai 81310, Johor, Malaysia;

Univ Teknol Malaysia, Fac Mech Engn, Dept Thermo Fluids, Skudai 81310, Johor, Malaysia;

Univ Teknol Malaysia, Fac Mech Engn, Marine Technol Ctr, Skudai 81310, Johor, Malaysia;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
Aerodynamic coefficients; Computational fluids dynamic (CFD) simulation; Compound wing; Design parametric study; Wing-in-ground effect;

机译：空气动力学系数;计算流体动力学（CFD）模拟;复合机翼;设计参数研究;地上翼效应;

相似文献

外文文献
中文文献
专利

1. Design Parametric Study of a Compound Wing-in-Ground Effect. I: Aerodynamics Performance [J] . Jamei Saeed, Maimun Adi, Mansor Shuhaimi, Journal of aerospace engineering . 2016,第1期

机译：复合接地翼效应的设计参数研究。一：空气动力学性能
2. Ground boundary layers effect on aerodynamic coefficients of a compound wing with respect to design parameters [J] . Jamei Saeed, Maimun Adi, Azwadi Nor Ocean Engineering . 2018,第SEPa15期

机译：就设计参数而言，地面边界层对复式机翼的空气动力系数有影响
3. Parametric Design Study on Aerodynamic Characteristics of Variable Pitot Inlets for Transonic and Supersonic Civil Aviation [J] . Stefan Kazula, Mark W?llner, David Grasselt, MATEC Web of Conferences . 2019,第11期

机译：跨音速和超音速民航可变皮托管进气特性的参数设计研究
4. FINITE ELEMENT METHOD AND PARAMETRIC STUDY ON MATERIAL PROPERTIES AND FRICTION COEFFICIENTS FOR DESIGN OF MECHANICAL COMPONENTS [C] . Yu Hua Li, Seung Ki Moon, Zhong Yang Chua, Computer and infromation in engineering conference;ASME international design engineering technical conferences and computers and information in engineering conference . 2018

机译：机械零件设计的有限元方法和材料性能及摩擦系数的参数研究
5. Aerodynamic design of a tilting wind tunnel for the study of a glider in ground effect. [D] . Velasquez E., Andres Felipe. 2009

机译：用于研究滑翔机在地面效应的倾斜风洞的空气动力学设计。
6. Design and Parametric Study of the Magnetic Sensor for Position Detection in Linear Motor Based on Nonlinear Parametric Model Order Reduction [O] . Sarbajit Paul, Junghwan Chang 2017

机译：基于非线性参数模型降阶的直线电机位置检测磁传感器设计与参数研究
7. Decision-making is the process of analyzing information about a problem situation and comparing it to a specific conclusion in order to solve a specific problematic (Yıkılmaz, 2001; Miller and Byrnes, 2001). Decision-making styles are a mechanism that is influenced by the internal and external conditions that determine the direction of the decisions of the individual, the content of the decision-making process, and the outcome of the decision-making process (Payne, Bettman and Johson, 1993; Bavol’ár and Orosová, 2015). ACT is a contemporary member of the Cognitive Behavioral Therapy family. ACT (Acceptance and commitment therapy) has both similar and different directions with Behavioral Therapies and Cognitive Therapies (Herbet and Forman, 2011; Hayes, 2004). KKT responds to classical behavioral treatments using both existential and cognitive approaches in the analysis of behavior. KKT is a science wing that tries to solve human problems with a wider perspective aimed at solving problematic human behaviors (Plumb, Stewart, Dahl and Lundgren, 2009). It is seen that there is very little research about the new approach of ACT approach when the aiming country of our country is screened and it is thought that our country will contribute to the field of psychological counseling with the work done. In the scope of the research, experimental and control groups and preliminary test, post-test and follow-up measurements of 2x3 experimental design were used. The study's study group consists of a total of 24 (12 experimental and 12 control groups) university students studying in different departments and levels, continuing their education in the academic year of 2015-2016 in Ağrı province and İbrahim Chechen University in 2015-2016 academic year. The average age of participants in the experiment and control group is 20. There were 12 participants in the experimental group, 7 female and 5 male, and 12 participants, 7 female and 5 male in the control group. Personal Information Form and Decision Making Style Scale prepared by the researcher were used in the research. In order to decide on the tests to be used in the course of analyzing the data, the scores of the participant's Decision Styles Scale pre-test, which are placed primarily in the experimental and control groups, it was analyzed whether the basic expectations of parametric tests were answered. As a result of the analysis made, the scores, skewness and kurtosis coefficients obtained from the Decision Making Styles Scale were given to the experimental and control groups. It was determined that the distribution was normal in the result of Shapiro-Wilk test, in which the skewness and kurtosis coefficients of each sub-scale were ranked between -1 and +1. Participants in the experimental and control groups; homogeneity test results for decision-style pre-test measurements indicate that the data are homogeneous. According to the results of the Mauchly Globalness Test, it has been determined that working supports the hypothesis. It was determined that there was no significant difference between the pre-test scores obtained from dependent decision-making style of experiment and control groups, but the test group showed lower mean scores at the significant level within the scores of post-test and follow-up tests. Therefore, it can be said that the ACT-oriented psychoeducation program applied to the experimental group reduces the dependent decision-making style scores from the decision style sub-dimensions and the psychoeducation program has a lasting effect. It was determined that there was no significant difference between pre-test, post-test and follow-up scores obtained from the Spontaneous-Instant Decision Style of experiment and control groups. Thus, it can be said that this situation does not cause a significant difference in the Spontaneous-Decision-Making Style scores from the decision style sub-dimensions of the ACT-oriented psychoeducation program applied to the experimental group. The ACT -oriented psychoeducation program had a decline in the intuitive decision-making styles of the individuals, but this decrease did not create significant differences. Thus, it can be said that this situation does not make a meaningful difference in the intuitive decision style scores from the decision style sub-dimensions of the KKT oriented psychoeducation program applied to the experimental group. The pre-test scores obtained from the rational decision-making style of the experimental and control groups showed that there was a difference between the post-test and the follow-up scores, but this difference was not significant. As a result of the analysis, it was determined that the test group had higher levels of rational decision style than the pre - test scores in the post test and follow - up scores, whereas the post test and follow - up test scores in the control group rational decision style showed a decrease compared to the pre - test scores. the pre - test scores. Decision-making Styles Scale Avoidant Decision Making As a result of the analysis of the mean scores of the subscale scores of pre-test, post-test and follow-up measures, the group effect was found to be insignificant. It was determined that the experimental and control groups differed significantly from the pre-test scores obtained from the avoidant decision-making style but did not show any significant change within the scores of the post-test and follow-up tests. [O] . mustafa ercengiz, ali haydar şar 2018

机译：决策是分析有关问题情况的信息并将其与特定结论进行比较的过程，以解决特定的问题（Yıkılmaz，2001; Miller和Byrnes，2001）。决策风格是一种机制，受到内部和外部条件的影响，确定个人决定的方向，决策过程的内容以及决策过程的结果（PAYNE，BETTMAN和BEDNE） Johson，1993;Bavol'ár和奥萨洛瓦，2015）。法案是认知行为治疗家庭的当代成员。行为（验收和承诺治疗）具有与行为疗法和认知疗法的类似和不同方向（Herbet和Forman，2011; Hayes，2004）。 KKT在分析行为中使用存在性和认知方法来响应古典行为治疗方法。 KKT是一个科学翼，试图解决人类问题，旨在解决有问题的人类行为（铅垂，斯图尔特，Dahl和Lundgren，2009）。有人认为，当我们国家的瞄准国家进行筛选时，有关行动方法的新方法几乎没有研究，并且认为我们的国家将为完成工作做出贡献的心理咨询领域。在研究的范围内，使用实验和对照组和初步测试，使用后测试和后续测量的2x3实验设计。该研究的研究小组包括共24名（12个实验和12个对照组）大学学生在不同的部门和水平上学习，在2015-2016学术上继续进行2015-2016的学术年度2015-2016学年年。实验和对照组参与者的平均年龄是20.实验组中有12名参与者，7名女性和5名男性，12名参与者，7名女性和5名男性。研究人员准备的个人信息表格和决策制定风格规模在研究中使用。为了决定在分析数据的过程中使用的测试，参与者的决策风格刻度预测的分数主要在实验和对照组中进行，分析了参数的基本期望吗？测试得到了回答。由于对实验和对照组给出了从决策曲调标度获得的分数，偏移和峰度分子系数。确定该分布是正常的在成熟的-WILK试验结果中，其中每亚级的偏差和刚度系数在-1到+1之间排名。实验和对照组的参与者;决策式预测测量的同质性测试结果表明数据是均匀的。根据毛毛环保试验的结果，已确定工作支持假设。据确定，从依赖决策风格的实验和对照组获得的预测分数之间没有显着差异，但测试组在测试后的分数内显示出较低的平均分数和后续的分数 - 测试。因此，可以说，应用于实验组的面向活动的心理教育程序减少了决策风格子维度的依赖决策风格分数，并且心理教育程序具有持久的效果。据确定，从实验和对照组自发决策风格获得的预测试，测试后和后续评分之间没有显着差异。因此，可以说这种情况不会导致从应用于实验组的活动导向的心理教育程序的决策风格分数的自发决策风格分数显着差异。行为的心理教育计划在个人直观的决策风格下降，但这种减少并没有产生显着的差异。因此，可以说，这种情况不会在从应用于实验组的KKT导向的心理教育程序的决策风格分数中产生有意义的决策风格分数。从实验和对照组的理性决策风格获得的预测分数显示后检验后和随访评分之间存在差异，但这种差异并不重要。由于分析，确定测试组的理性决策风格较高，而不是后测试和后续分数的预测分数，而对照组合理决策风格的后测试和后续测试分数显示出与预测试分数相比的减少。预测分数。决策款式扩展避免决策由于分析了预测试，测试后和后续措施的班次评分的平均分数，发现群体效应是微不足道的。确定实验和对照组从避免决策风格获得的预测评分中显着不同，但在测试后和后续测试的分数内没有显示出任何重大变化。
8. Analysis of Empirically Determined Aerodynamic and Ram Coefficients for a Power-Augmented-Ram Wing-in-Ground Effect. [R] . rousseau,david g. 1978

机译：作者：张莹莹，王汝传，王。，机械设计与制造maCHINERY DEsIGN＆maNUFaCTURE幂增强拉杆地效应经验确定的气动和拉姆系数分析。

Design Parametric Study of a Compound Wing-in-Ground Effect. II: Aerodynamics Coefficients

摘要

著录项

相似文献

相关主题

期刊订阅