Steady state model for a pressurized vessle

In summary, the conversation discusses the relationship between the air pressure inside an inflated bladder and the diameter of the outlet, with a fixed inlet flow rate. The bladder is fed by a blower delivering 600 scfm through a 4" diameter inlet. The bladder is large, measuring 120,000 ft^3. The speaker wants to determine the effect of the outlet's cross-sectional area on the bladder's pressure, which is currently at a low 2-4 inH2O. They also mention their desire to model the pressure rise over time until it reaches a steady state. The possibility of the bladder expanding and contracting is also brought up, which would require a constitutive law for the bladder's material.
  • #1
meccard
1
0
I am trying to figure out the relationship between the air pressure inside of an inflated bladder and the diameter of the outlet with a fixed inlet flow rate.

The inlet is fed by a blower which is delivering 600 scfm to the system through a 4" diameter inlet. The bladder is large, it is 120,000 ft^3. I'd like to be able to determine the effect that the cross sectional area of the outlet has on the pressure inside the bladder. The outlet is simply a hole in the bladder with air flow going directly to the atmosphere. The pressure inside is low 2-4 inH2O. I would also like to be able to model the pressure rise over time up to a stead state point?
 
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  • #2
Does the bladder expand and contract? Because if it does then your going to require a constitutive law for the material the bladder is made out of.
 

FAQ: Steady state model for a pressurized vessle

What is a steady state model for a pressurized vessel?

A steady state model for a pressurized vessel is a mathematical representation of the behavior and characteristics of a vessel that is constantly pressurized. It takes into account factors such as temperature, pressure, and material properties to predict how the vessel will respond under different conditions.

What are the applications of a steady state model for a pressurized vessel?

Steady state models for pressurized vessels are commonly used in the design and analysis of industrial equipment such as boilers, pressure vessels, and pipelines. They are also used in the aerospace industry for designing aircraft and spacecraft components.

How is a steady state model for a pressurized vessel different from a dynamic model?

A steady state model assumes that the vessel is in a constant state of pressure, while a dynamic model takes into account changes in pressure over time. Steady state models are useful for predicting long-term behavior, while dynamic models are better for understanding short-term changes.

What are the limitations of a steady state model for a pressurized vessel?

Steady state models may not accurately predict behavior during sudden changes in pressure or temperature, as they assume a constant state. They also do not take into account factors such as fatigue and wear and tear on the vessel over time.

How are steady state models validated?

Steady state models are validated by comparing their predictions to real-world data obtained through experiments or observations. This helps to ensure that the model accurately reflects the behavior of the pressurized vessel in question.

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