Search found 10 matches

by Jian.Zhang
Wed May 05, 2021 11:36 am
Forum: Computer-Aided Engineering Software Tools
Topic: Mlife - User Defined Distribution
Replies: 21
Views: 2985

Re: Mlife - User Defined Distribution

Dear Jason, Yes, I agree that I should consider the wake meandering with setting the coherence parameter in three components to be the same. In fact, I considered both cases with and without considering wake meandering and tried to tell the difference between the two simulation methods. The factor I...
by Jian.Zhang
Wed May 05, 2021 10:41 am
Forum: Computer-Aided Engineering Software Tools
Topic: Mlife - User Defined Distribution
Replies: 21
Views: 2985

Re: Mlife - User Defined Distribution

Dear Jason, Many thanks. I consider the coherence parameters (specified as "default") might be right when not considering wake meandering, as shown below. --------Spatial Coherence Parameters---------------------------- default SCMod1 - u-component coherence model ("GENERAL", &qu...
by Jian.Zhang
Wed May 05, 2021 9:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: Mlife - User Defined Distribution
Replies: 21
Views: 2985

Re: Mlife - User Defined Distribution

Dear Jason, Thank you for your reply. I changed the ultimate loading bearing capacity to 458319 kN-m. The failure time increased from 3.78E+05s to 8.84E+05s (around 0.03 years) but did not satisfy the design demand. I first thought it might be caused by the parameter setting in Turbsim, which needs ...
by Jian.Zhang
Wed May 05, 2021 3:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: Mlife - User Defined Distribution
Replies: 21
Views: 2985

Re: Mlife - User Defined Distribution

Dear Jason, I encountered the same problem as depicted by Conor, and the calculated failure time of the tower base is limited to 3.78E+05s, which is much lower than the specified service time, 20 years (6.3072E+08s). The detailed file is uploaded to my Google cloud drive, considering the large input...
by Jian.Zhang
Fri Jul 24, 2020 8:02 am
Forum: Computer-Aided Engineering Software Tools
Topic: Beginner Guide for MATLAB Simulink and FAST
Replies: 53
Views: 54054

Re: Beginner Guide for MATLAB Simulink and FAST

Dear Jason,

I feel sorry for missing your announcement. Thank you for your help.

Best regards,
Jian
by Jian.Zhang
Fri Jul 24, 2020 7:53 am
Forum: Rotor Aerodynamics
Topic: NREL 5-MW reference turbine - CP, CQ, CT Coefficients
Replies: 41
Views: 86383

Re: NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Dear Jason, Thank you for your timely response. Yes, I refer to the AeroDyn outputs. I just edited my questions for clarity. I wonder if I want to impose the concentrated force on the blade, whether the method I mentioned is right? I am still confused about how to employ the parameter "B1N1DynP...
by Jian.Zhang
Fri Jul 24, 2020 6:46 am
Forum: Rotor Aerodynamics
Topic: NREL 5-MW reference turbine - CP, CQ, CT Coefficients
Replies: 41
Views: 86383

Re: NREL 5-MW reference turbine - CP, CQ, CT Coefficients

Hi, everyone I have some problems with the output parameters, "B1N1DynP", "B1N1Fx" and "B1N1Fy". Based on the "OutListParameters.excel" in the archive of FAST V8, I know the "B1N1Fx" and "B1N1Fy" refer to the normal and tangential forces to...
by Jian.Zhang
Thu Jul 16, 2020 7:38 am
Forum: Computer-Aided Engineering Software Tools
Topic: Beginner Guide for MATLAB Simulink and FAST
Replies: 53
Views: 54054

Re: Beginner Guide for MATLAB Simulink and FAST

Dear Elham, The FAST models of the NREL 5-MW turbine available from (http://wind.nrel.gov/public/jjonkman/NRELOffshrBsline5MW/) are compatible with FAST v7.02.00d-bjj. But these models rely on the use of a Bladed-style DLL controller, which is not compiled with FAST v7.02.00d-bjj by default. If you...
by Jian.Zhang
Mon May 25, 2020 12:48 am
Forum: General
Topic: FAST.Farm
Replies: 190
Views: 24049

Re: FAST.Farm

Dear Jason,

Could you also share the pre-release of FAST. Farm with me?

Many thanks.

Best regards,
Jian
by Jian.Zhang
Wed Apr 29, 2020 7:34 am
Forum: Computer-Aided Engineering Software Tools
Topic: FAST theory manual
Replies: 362
Views: 76828

Re: FAST theory manual

Dear Dr. Jonkman,

Can you please send me the "Unofficial FAST Theory Manual" as well?

My mail address: polyujzhang@gmail.com

Thank you and best regards,
Jian

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