Forum
Important Notice for New User Registrations
To combat an increasing number of spam and bot registrations, we now manually approve all new user registrations. While this may cause a delay until your account is approved, this step is essential to ensure the quality and security of this forum.
To help us verify your registration as legitimate, please use a clear name as user name or an official email address (such as a work, university, or similar address). If you’re concerned that we may not recognize your registration as non-spam, feel free to email us at with a request to approve your username.
Validation Method for Simple Beam in Cross-flow
Quote from danirmn on 26. April 2024, 12:23Hello QBlade Community,
My team is looking to create and validate the structural model of VAWT in QBlade with other high-fidelity CAE/FSI methods. The first step is to validate QBlade’s FSI capabilities by creating a structural model of a stationary and non-rotating cylindrical pole constrained to the ground. The loads, strains and deflections outputted by QBlade would then be compared to analytical models for validation.
What would be the most straightforward way to create this model?
I thought of potentially creating a single-bladed VAWT with the blade profile being cylindrical, constraining its bottom surface with a strut, and implementing no rotation in the VAWT, basically creating a bottom-fixed beam in cross-flow.
Would this be the best way of doing so or is there another more accurate and straightforward way?
Any feedback or comments are greatly appreciated.
Thank you in advance,
Daniel Román
Hello QBlade Community,
My team is looking to create and validate the structural model of VAWT in QBlade with other high-fidelity CAE/FSI methods. The first step is to validate QBlade’s FSI capabilities by creating a structural model of a stationary and non-rotating cylindrical pole constrained to the ground. The loads, strains and deflections outputted by QBlade would then be compared to analytical models for validation.
What would be the most straightforward way to create this model?
I thought of potentially creating a single-bladed VAWT with the blade profile being cylindrical, constraining its bottom surface with a strut, and implementing no rotation in the VAWT, basically creating a bottom-fixed beam in cross-flow.
Would this be the best way of doing so or is there another more accurate and straightforward way?
Any feedback or comments are greatly appreciated.
Thank you in advance,
Daniel Román
Quote from David on 26. April 2024, 14:57Hi Daniel,
in general, the structural model in QBlade is based on the Project::Chrono library, which itself has undergone rigurous validation already.
However, in order to facilitate your own validation, a simple way could be to define a turbine with tower only, and no blades. You could then add aerodynamic forces to the tower through the tower drag, or even add your own force timeseries to any part of the tower using an “External Loading File“.
BR,
David
Hi Daniel,
in general, the structural model in QBlade is based on the Project::Chrono library, which itself has undergone rigurous validation already.
However, in order to facilitate your own validation, a simple way could be to define a turbine with tower only, and no blades. You could then add aerodynamic forces to the tower through the tower drag, or even add your own force timeseries to any part of the tower using an “External Loading File“.
BR,
David