Method for Determining a Physical Parameter of a Pipe-Fluid System

A determination system for determining a physical parameter of a pipe-fluid system, the determination system including a determination device, the determination device configured to perform:

• providing a mechanical vibration spectrum of the pipe-fluid system, which is generated by a mechanical excitation impacting an outer surface of the pipe-fluid system;
• providing characteristic data of a pipe of the pipe-fluid system;
• providing process-fluid data of the pipe-fluid system;
• determining a mechanical model vibration spectrum based on a provided theoretical model for the pipe-fluid system and the provided characteristic data of the pipe and the provided process-fluid data;
• comparing the mechanical vibration spectrum and the model vibration spectrum for determining the physical parameter of the pipe-fluid system for determining the physical parameter of the pipe-fluid system.

A computer program stored in a computer-readable storage medium that is non-tangible, the computer program including computer-executable instructions, which when executed perform the following functions:

• providing a mechanical vibration spectrum of the pipe-fluid system, which is generated by a mechanical excitation impacting an outer surface of the pipe-fluid system;
• providing characteristic data of a pipe of the pipe-fluid system;
• providing process-fluid data of the pipe-fluid system;
• determining a mechanical model vibration spectrum based on a provided theoretical model for the pipe-fluid system and the provided characteristic data of the pipe and the provided process-fluid data;
• comparing the mechanical vibration spectrum and the model vibration spectrum for determining the physical parameter of the pipe-fluid system for determining the physical parameter of the pipe-fluid system.