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Everything about Specific speed
Measure of turbomachinery speed
Specific speed Ns, is used to characterize turbomachinery speed. Common commercial and industrial practices use dimensioned versions which are of equal utility. Specific speed is most commonly used in pump applications to define the suction specific speed —a quasi non-dimensional number that categorizes pump impellers as to their type and proportions. In Imperial units it is defined as the speed in revolutions per minute at which a geometrically similar impeller would operate if it were of such a size as to deliver one gallon per minute against one foot of hydraulic head. In metric units flow may be in l/s or m3/s and head in m, and care must be taken to state the units used. Wikipedia →
🧠Start here: a 6-step reading path
- Read the overview: Specific speedA 5-minute orientation
- Skim a recent paper: Assessment of erosion wear in low specific speed Francis turbine due to particulate flowInfluential work since 2022
- Pick up a classic book: Steps to reading proficiencyThe most-reprinted book on the subject
- Read the landmark paper: Speed of Processing in Children With Specific Language ImpairmentCited 346 times
- Go sideways: Compressor characteristicA closely related topic
- Go sideways: Affinity lawsA closely related topic
đź“– Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
Speed of Processing in Children With Specific Language Impairment
Identifying crash propensity using specific traffic speed conditions
The flow simulation of a low-specific-speed high-speed centrifugal pump
Task-specific perceptual learning on speed and direction discrimination
Analysis of Specific Speed Testing for Cricketers
Aging and counting speed: Evidence for process-specific slowing.
Novel Speed Test for Evaluation of Badminton-Specific Movements
Development of Speed Correction Factors Based on Speed-Specific Distributions of Vehicle Specific Power for Urban Restricted-Access Roadways
🆕 Influential since 2022
Assessment of erosion wear in low specific speed Francis turbine due to particulate flow
An improved method for evaluating eco-driving behavior based-on speed-specific vehicle-specific power distributions
Reduced Range of Gait Speed: A Parkinson’s Disease-Specific Symptom?
High-speed Training in a Specific Context in Soccer: Transition Games
CFD and Energy Loss Model Analysis of High-Speed Centrifugal Pump with Low Specific Speed
đź“š Books worth reading
Steps to reading proficiencyAnne G. Phillips, Anne Dye Phillips · 1982
Steps to reading proficiencyPeter Elias Sotiriou, Peter Elais Sotiriou · 1999- 📕Exploring densityPatrick Stedham · 1993
Schallgeschwindigkeit und verhältnis der specifischen wärmen der luft bei hoher temperatur ...Alfred Kalähne · 1902- 📕The specific heat of hydrogen gas at low temperatures from the velocity of sound; and a precision method of measuring the frequency of an oscillating circuitRobert Edwin Cornish · 1928
- 📕BSV by exampleRishiyur S. Nikhil · 2010
High-performance ASIC designRazak Hossain · 2008- 📕M.C. Potter and D.C. Wiggert, Mechanics of Fluids, Prentice Hall (1997)M.C. Potter and D.C. Wiggert, · 1997
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
đź”— Related topics
- Compressor characteristic Compressor characteristic is a mathematical curve that shows the behaviour of a fluid going through a dynamic compressor. It shows changes in fluid pressure…
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- Axial-flow pump An axial-flow pump, or AFP, is a common type of pump that essentially consists of a propeller (an axial impeller) in a pipe. The propeller can be driven…
- Net positive suction head In a hydraulic circuit, net positive suction head (NPSH) may refer to one of two quantities in the analysis of cavitation: The Available NPSH (NPSHA):…
- Torque converter A torque converter is a device, usually implemented as a type of fluid coupling, that transfers rotating power from a prime mover, like an internal combustion…
- Centrifugal pump Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational…
- Axial fan design An axial fan is a type of fan that causes gas to flow through it in an axial direction from entry to exit, parallel to the shaft about which the blades…
- Blade solidity Blade solidity is an important design parameter for the axial flow impeller and is defined as the ratio of blade chord length to spacing. Blade Solidity…