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        Critical Factors Affecting Selection of Travel Destinations: A Case Study in Vietnam

        Thanh Phong TRAN,Trong Nghia PHAN,Hoang Thinh NGUYEN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.9

        This study is conducted to fill the research gap in proposing and testing the relationship between “Attitudes about the overall image of the destination”, “Subjective norms” and “Perceived behavioral control”. Simultaneously, we examine the relationship between these variables and tourists’ “intent to choose a destination.”. While most previous studies only deal with the relationship between destination image and intended behavior of tourists, this study uses the theory of planned behavior (Ajzen, 1991) to explain the intended behavior of tourists. In addition, the Theory of Destination Image (Echtner & Ritchie, 1991) is used to explain the factor “attitudes about the overall image of the destination”, contribute to supplementing and perfecting the Theory of Planned Behavior. This study uses a Structural Equation Modeling (SEM) to analyze a sample of 993 observations, the subjects of which are international tourists to Vietnam, to test the relationship between second-order constructs. The test results show that “Subjective norms” and “Perceived behavioral control” have an impact on “Attitudes about the overall image of the destination”. Moreover, all these three factors have an impact on “Intent to choose destination”, in which the factor “Perceived behavioral control” has the greatest impact on “intention to choose destination”.

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        Aerodynamic Performance of an Annular Combustion Chamber Cooling with Swirler Design

        Cong-Truong Dinh,Xuan-Truong Le,Trong-Nghia Hoang,Quang-Anh Pham 한국유체기계학회 2021 International journal of fluid machinery and syste Vol.14 No.1

        Gas turbines play a crucial role in the aviation industry as they are primary sources of power for most aircraft. The combustion chamber is one of the three essential part of jet engines, together with compressor and turbine. Energy is generated when fuel is burned in the combustor. In the primary zone, the recirculation flow is of great importance to aerodynamic performance. Swirlers, fitted in the dome around the fuel injector, can alter the behavior of the recirculation flow and thus, impact combustion performance. The vortex behind a swirler can be easily controlled by changing the swirl angle. In addition, changing the vortex angle leads to a difference in mixing between fuel and air. This paper investigates the effects of swirler design, based on the swirl angle, on aerodynamic performance of an annular combustion chamber in cooling condition using three-dimensional Reynolds-averaged Navier-Stokes equations with the SST turbulence model.

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