Forthcoming articles

International Journal of Aerodynamics

International Journal of Aerodynamics (IJAD)

These articles have been peer-reviewed and accepted for publication but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.

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International Journal of Aerodynamics (6 papers in press)

Regular Issues

  • Simulations of shallow water surface waves and comparison with water table experiments   Order a copy of this article
    by M. Hafez, A. Chuen, A. Burkhead 
    Abstract: .
    Keywords: .

  • Aerodynamic investigation of blunt and slender bodies in ground effect using OpenFOAM   Order a copy of this article
    by Umberto Ravelli, Marco Savini 
    Abstract: The main purpose of this numerical study is to assess the capability of OpenFOAM in predicting aerodynamic performance of blunt and slender devices for automotive and motorsport applications such as a diffuser-equipped blunt body and a F1 single element front wing in ground effect. Reynolds Averaged Navier-Stokes (RANS) simulations were carried out at different values of ride height and diffuser angle/angle of attack: predictions of integral quantities, such as drag (CD) and lift (CL) coefficients were validated against the available set of experimental data from Loughborough and Southampton Universities. Results put in evidence that OpenFOAM is suitable for fulfilling the goal of this study, even if the entire workflow (from meshing to calculation) is not user-friendly: the success of the simulations strongly depends on quality of the mesh, turbulence model, type of solver and numerical setup.
    Keywords: open-source; OpenFOAM; CFD; aerodynamics; ground effect; motorsport; automotive; diffuser; blunt body; wing; ride height; Reynolds averaged Navier-Stokes; RANS.
    DOI: 10.1504/IJAD.2019.10019148
     
  • Solar Powered Unmanned Aerial Vehicle: A numerical approach in improving solar cell performance   Order a copy of this article
    by Rowayne E. Murzello, Mehdi Nazarinia, Amanda J. Hughes 
    Abstract: Solar powered unmanned aerial vehicles (SPUAV) have numerous applications and are considered as environmentally friendly vehicles since they only use suns energy for propulsion. In this study, a conceptional design was proposed which integrates a cooling duct inside the airfoil to provide cooling for the backside of solar cells at Reynolds number of 206,000 at an altitude of 1 km. Duct dimensions were first optimised using a MATLAB program. Computational fluid dynamics (CFD) was used to investigate the lift and drag characteristics of the modified airfoil. Heat transfer analysis on the solar array using CFD was performed to obtain solar cell temperatures of the baseline and modified design. Results obtained from the cruising conditions showed that the maximum temperature drop was 3
    Keywords: cooling duct; computational fluid dynamics; CFD; unmanned aerial vehicle; solar powered UAV; heat transfer enhancement; solar cell.
    DOI: 10.1504/IJAD.2019.10019804
     
  • Connection between rear-end extensions and yaw response of a passenger vehicle   Order a copy of this article
    by Lennert Sterken, Simone Sebben, Lennart Löfdahl 
    Abstract: This paper aims to investigate the sensitivity of the rear-end design to the yaw response of a passenger vehicle. To accomplish this, rear-end extensions are attached to the base perimeter of a Sports Utility Vehicle (SUV). The intention of the extensions is to improve and to smooth out the pressure recovery such that a more stable wake is created. The extensions facilitate the implementation of configuration changes with respect to design, inclination angle and length. To control the separation conditions of the flow entering the near-wake, two different designs are studied. The yaw response is analysed through the global forces and flow field measurements presented as surface- pressure distributions and wake plane measurements of local drag. The results show that the rear-end can be designed as to control the yaw response so the aerodynamic drag is minimized and passenger vehicle stability is maintained.
    Keywords: Full-scale wind tunnel experiments; Yaw response; Drag reduction; Rear-end stability; Rear-end design.

  • Computational Study of aerodynamic performance and flow structure around NACA 23012 wing   Order a copy of this article
    by James Dent, Joshua Robson, Alessio Basso, Alexander Ellin, Atma Prakash, Faik Hamad 
    Abstract: The structure of the external flow field around the wing of a Lobet Ganagobie light aircraft is investigated in this paper by using Computational Fluid Dynamics method (CFD). A model has been developed to mimic the NACA 23012 geometry and used to simulate the flow around it. A wind tunnel is used to collect new experimental data for lift coefficient to verify the accuracy of the model at Reynolds numbers, Re = 0.3 x 106. Then, the CFD model is utilised to produce velocity streamline plots and pressure and velocity contours at hiher Re number (2 xl06 3 x 106) to have a better understanding of the flow around Lobet Ganagobie wing model. rnThe turbulence model is selected based on the comparison of experimental data with results from different CFD models. Driven by the abrupt stalling characteristics of the NACA 23012 airfoil section, the model is used to predict the position of the stagnation point on the airfoil so that a stall waning device can be sensibly located. rn
    Keywords: CFD simulation; finite wing; lift coefficient; drag coefficient; stagnation point; flow separation.

  • Design of an external six-component wind tunnel balance with floating frame   Order a copy of this article
    by Miguel Angel AGUIRRE, Ramiro Bracco, Fabio Milanese, Matias Meroniuc 
    Abstract: This paper details the design procedure of a wind tunnel aerodynamic balance. It is the six-component external balance with floating frame used in our main Eiffel-type wind tunnel. This balance has the unique feature of being able to receive full and half wind tunnel models. Firstly, a set of design requirements and specifications is defined. Then the conceptual and detailed design of the mechanism is deeply explained. Finally, an analytical model of the balance is developed and used in order to study the effect of the design loads: this allowed sizing of the load cells and the counterweights of the balance.
    Keywords: experimental aerodynamics; wind tunnel; external balance; floating frame; half model; full model; design procedure; force measurement.