Mass Flow Parameter
Mass Flow Parameter - Related Videos
13:35
Mass Conservation and Flow Rate Measurements
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The purpose of this experiment is to demonstrate the calibration of a flow passage as a flowmeter using a control volume (CV) formulation [1, 2]. The CV analysis focuses on the macroscopic effect of flow on engineering systems, rather than the detailed description that could be achieved with a detailed differential analysis. These two techniques should be...
02:09
Measurement of Multiple Mitochondrial Parameters in Neurons using Flow Cytometry
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2025
This video demonstrates the labeling of neuronal cells with antibodies for mitochondrial respiratory chain complexes, mitochondrial DNA-associated protein, and mitochondrial outer membrane protein, followed by flow cytometry to quantify their levels.
10:16
Optimization of Flow Cytometric Sorting Parameters for High-Throughput Isolation and Purification of Small Extracellular Vesicles
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Cited by 2 •
2023
This protocol provides a rapid and size-specific isolation method for small extracellular vesicles by optimizing the size of the air spray nozzle, sheath fluid pressure, sample flow pressure, voltage, gain, and triggering threshold parameters.
09:58
Digestion of Whole Mouse Eyes for Multi-Parameter Flow Cytometric Analysis of Mononuclear Phagocytes
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Cited by 10 •
2020
This protocol provides a method to digest whole eyes into a single cell suspension for the purpose of multi-parameter flow cytometric analysis in order to identify specific ocular mononuclear phagocytic populations, including monocytes, microglia, macrophages, and dendritic cells.
10:59
Mass Cytometry: Protocol for Daily Tuning and Running Cell Samples on a CyTOF Mass Cytometer
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Cited by 48 •
2012
The steps necessary for daily tuning and optimization of the performance of a CyTOF mass cytometer are described. Comments on optimal sample preparation and flow rate are...
FAQs
Mach number determines where the flow operates relative to the sonic condition, so it directly affects the mass flow parameter. As the flow approaches Mach 1, the parameter increases toward its maximum, or choked, value. This relationship lets engineers connect local flow behavior with the mass flow capacity of a passage.
The specific-heat ratio affects the relationship between pressure, temperature, and Mach number in a perfect gas. Consequently, it changes the mass flow parameter associated with a given flow condition. Including this property helps engineers analyze different gas-dynamic conditions consistently rather than treating all compressible flows as having identical behavior.
The sonic maximum identifies a limiting flow condition in which the passage reaches its choked mass flow capacity. Once this maximum is reached, the mass flow parameter cannot increase through the same governing relationship without changing relevant conditions such as area, stagnation pressure, or stagnation temperature. This is important for predicting operating limits.
Stagnation pressure and stagnation temperature provide the thermodynamic reference conditions used in the parameter’s perfect-gas expression, together with mass flow rate and passage area. Evaluating these quantities places the flow on a consistent basis for analysis. Engineers can then assess how a passage performs as its thermodynamic state changes.
For nozzle sizing, engineers relate the desired mass flow to passage area and the relevant stagnation pressure and temperature. The Mach-number dependence indicates whether the design approaches the sonic maximum and therefore a choked operating limit. This supports selection and analysis of nozzle dimensions while accounting for compressible-flow behavior.
The parameter applies across several gas-dynamics components, including nozzles, diffusers, turbines, compressors, and duct restrictions. In each case, it helps relate the passage area and thermodynamic conditions to mass-flow behavior. Using the same quantity across these systems allows engineers to examine capacity, operating limits, and performance under changing conditions.