How can I calculate the drop in pressure across an orifice?

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Discussion Overview

The discussion centers around calculating the drop in pressure across an orifice, considering parameters such as inlet pressure, temperature, density, mass flow rate, and orifice cross-section. The scope includes theoretical approaches and practical methods for fluid dynamics.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant inquires about methods to calculate the pressure drop using known parameters like inlet pressure and mass flow rate.
  • Another participant suggests using empirical values from a specific website or performing numerical simulations, noting that simulations may require significant time investment.
  • A third participant references a Wikipedia article and an ASME book as resources for orifice calculations, implying these contain relevant methodologies.
  • A fourth participant reiterates the initial inquiry about calculating pressure drop and provides links to additional resources related to orifice coefficients.

Areas of Agreement / Disagreement

Participants present various methods and resources for calculating pressure drop, but there is no consensus on a single approach or solution. Multiple competing views and resources are shared without resolution.

Contextual Notes

Limitations include potential dependencies on specific empirical values, assumptions about fluid behavior, and the complexity of numerical simulations that may not be fully addressed in the discussion.

Yasasvi
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I know the inlet pressure, temperature and density along with the massflow rate across the orifice and the orifice cross section. Is there a way for me to calculate the drop in pressure across the orifice?
 
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