CFD Study of DTU 10 MW RWT Aeroelasticity and Rotor-Tower Interactions

Horcas, Sergio González; Debrabandere, François; Tartinville, B.; Hirsch, Charles; Coussement, Grégory

doi:10.1007/978-3-319-39095-6_18

Cited by 4 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, as inlet distortion could also impact the structural integrity of the fan stage, the analysis could be extended to fluid-structure interactions using the NLH method coupled to a modal structural approach (González Horcas et al, 2017) at an even more reduced cost than state of the art methods.…”

Section: Discussionmentioning

confidence: 99%

Efficient simulation of inlet distortion in engine fan stage using nonlinear harmonic method

Mehdizadeh

Vilmin

Tartinville

et al. 2019

European Conference on Turbomachinery Fluid Dynamics and Hermodynamics

View full text Add to dashboard Cite

The nonlinear harmonic method (NLH) for efficiently simulating unsteady turbomachinery fluid dynamics in the frequency domain is described, and the details of its application to inlet distortion are discussed. The method capabilities are then demonstrated on the NASA transonic fan Stage 67 with a generic inlet distortion. Comparison of the results with the available experimental data confirms that the reconstructed unsteady flow solution obtained by the nonlinear harmonic method captures the main flow characteristics of the inlet distortion interaction with the fan stage such as the swirl associated with the upstream flow redistribution, the total pressure distortion transfer, and the generation of the total temperature distortion.The method offers a cost saving of two orders of magnitude compared to conventional time-domain unsteady methods for this type of applications. KEYWORDSHarmonic, distortion, fan, transonic NOMENCLATURE P pressure t total (stagnation) quantity, subscript T temperature y+ non-dimensional wall distance 0 reference value, subscript Acronyms CFD computational fluid dynamics LE leading edge NLH nonlinear harmonic method TE trailing edge

show abstract

Section: Discussionmentioning

confidence: 99%

Efficient simulation of inlet distortion in engine fan stage using nonlinear harmonic method

Mehdizadeh

Vilmin

Tartinville

et al. 2019

European Conference on Turbomachinery Fluid Dynamics and Hermodynamics

View full text Add to dashboard Cite

show abstract

“…Commercial CFD codes and reduced-order structural models have also been used to analyze the blade-tower interactions and quantify acceptable tip clearances and efficiency losses (Horcas et al, 2016). Even these latter efforts did not perform CFD-based multidisciplinary optimization using a monolithic architecture, which is the main contribution of this paper.…”

Section: State-of-the-art For Wind Turbine Design Optimizationmentioning

confidence: 99%

Aeroelastic Tailoring of Wind Turbine Rotors Using High-Fidelity Multidisciplinary Design Optimization

Mangano

Liao

et al. 2023

Preprint

View full text Add to dashboard Cite

Abstract. Reducing the cost of energy from wind power is a critical step towards decarbonizing the electric grid and mitigating climate change effects. Computational models are crucial in understanding the complex, multiphysics interactions of modern, highly flexible wind turbine rotors. When coupled with numerical optimization, such models provide an efficient way to explore the design space. We propose a high-fidelity aerostructural framework that couples computational fluid dynamics with 5 computational structural mechanics to analyze and optimize wind turbines. The framework uses a gradient-based optimization strategy with gradients efficiently computed using a coupled-adjoint approach. We optimize a benchmark utility-scale wind turbine rotor and explore its trade-offs between steady-state aerodynamic efficiency and structural weight. The optimizations account for a representative below-rated operating condition and use more than 100 structural and geometric design variables. The monolithic approach we propose is compared with a loosely-coupled optimization strategy used for the structural sizing 10 of the baseline rotor layout. We then discuss specific optimized blade features and a broader design trade space exploration between extracted torque and rotor mass. Optimized layouts increase the torque by up to 14 % and reduce the mass by up to 9 % or reduce the mass by up to 27 % with the same torque output compared to the baseline blade. The results demonstrate the benefits of optimizing a tightly-coupled aerostructural model and reveal additional insights that high-fidelity analysis provide to complement conventional design approaches.

show abstract

Towards Passive Aeroelastic Tailoring of Large Wind Turbines Using High-Fidelity Multidisciplinary Design Optimization

Mangano

Liao

et al. 2022

AIAA SCITECH 2022 Forum

View full text Add to dashboard Cite

CFD Study of DTU 10 MW RWT Aeroelasticity and Rotor-Tower Interactions

Cited by 4 publications

References 19 publications

Efficient simulation of inlet distortion in engine fan stage using nonlinear harmonic method

Efficient simulation of inlet distortion in engine fan stage using nonlinear harmonic method

Aeroelastic Tailoring of Wind Turbine Rotors Using High-Fidelity Multidisciplinary Design Optimization

Towards Passive Aeroelastic Tailoring of Large Wind Turbines Using High-Fidelity Multidisciplinary Design Optimization

Contact Info

Product

Resources

About