Generation of waves using spectra in REEF3D

Varada · August 9, 2023, 13:46

Hi Arun, small query regarding wave generation.

To create waves within a numerical wave tank using a spectrum, is it essential to activate B 92 along with B 85, 86, 87, and 93? If so, which wave theory would be the appropriate choice for this scenario?

Thank you

valgrinda · August 15, 2023, 13:31

For irregular waves, it is best to use B 92 31. The FNPF tutorial 8_4 on irregular wave propagation is a good starting point, have a look at the parameters used there.

Varada · February 16, 2024, 07:59

Thank you for addressing my previous query regarding irregular wave generation.

I've reviewed FNPF tutorial 8_4 on irregular wave propagation and would like to understand how the number of wave components (B 86) and frequency limits (B 87) are determined. I also referred "Numerical Modelling of Irregular Waves with REEF3D" by Ankit Aggarwal, where it was suggested that increasing the number of components does not significantly affect results. Additionally, in the wave2foam manual, it was recommended to use 1/3Tp to 3/Tp for defining the frequency range. Could you please provide further clarification on these points?

August 9, 2023, 13:46	Generation of waves using spectra in REEF3D	#1
Varada Member Bhargav Join Date: Aug 2022 Posts: 30 Rep Power: 4	Hi Arun, small query regarding wave generation. To create waves within a numerical wave tank using a spectrum, is it essential to activate B 92 along with B 85, 86, 87, and 93? If so, which wave theory would be the appropriate choice for this scenario? Thank you

August 15, 2023, 13:31		#2
valgrinda Super Moderator Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 403 Rep Power: 19	For irregular waves, it is best to use B 92 31. The FNPF tutorial 8_4 on irregular wave propagation is a good starting point, have a look at the parameters used there. __________________ Hans Bihs Team REEF3D www.reef3d.com

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February 16, 2024, 07:59		#3
Varada Member Bhargav Join Date: Aug 2022 Posts: 30 Rep Power: 4	Thank you for addressing my previous query regarding irregular wave generation. I've reviewed FNPF tutorial 8_4 on irregular wave propagation and would like to understand how the number of wave components (B 86) and frequency limits (B 87) are determined. I also referred "Numerical Modelling of Irregular Waves with REEF3D" by Ankit Aggarwal, where it was suggested that increasing the number of components does not significantly affect results. Additionally, in the wave2foam manual, it was recommended to use 1/3Tp to 3/Tp for defining the frequency range. Could you please provide further clarification on these points?