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Everything about Specific impulse
Change in velocity per amount of fuel
Specific impulse is a physical quantity defined as the ratio of change in momentum (impulse) to the mass used, usually fuel. It typically uses units of metres per second or feet per second. It is equivalent to thrust per mass flow rate. Wikipedia →
🧠Start here: a 6-step reading path
- Read the overview: Specific impulseA 5-minute orientation
- Skim a recent paper: Synthesis and performance of cyclopropanated pinanes with high density and high specific impulseInfluential work since 2022
- Pick up a classic book: High-power ion thruster technologyThe most-reprinted book on the subject
- Read the landmark paper: The product-specific nature of impulse buying tendencyCited 284 times
- Go sideways: Jet propulsionA closely related topic
- Go sideways: Tsiolkovsky rocket equationA closely related topic
đź“– Definitions
Noun The ratio of the thrust produced by a rocket or other jet engine to the rate of use of propellant.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
The product-specific nature of impulse buying tendency
High-Specific Impulse Hall Thrusters, Part 2: Efficiency Analysis
Experimental results in high-specific-impulse thermoionic acceleration
Ablative Laser Propulsion: Specific Impulse and Thrust Derived from Force Measurements
Optimization of Variable-Specific-Impulse Interplanetary Trajectories
Comparing between Product-specific and General Impulse Buying Tendency: Does Shoppers’ Personality Influence their Impulse Buying Tendency?
Thrust Stand Micromass Balance for the Direct Measurement of Specific Impulse
A Reliable Method for Predicting the Specific Impulse of Chemical Propellants
🆕 Influential since 2022
Synthesis and performance of cyclopropanated pinanes with high density and high specific impulse
Performance analysis on the specific impulse and specific thrust of scramjet with a quasi-one-dimensional model
Efficient optimization method for variable-specific-impulse low-thrust trajectories with shutdown constraint
Scramjet Engine Flowpath That Improves Specific Impulse Using JP-7 Fuel
High-Specific-Impulse Electrospray Propulsion with Small Capillary Emitters
đź“š Books worth reading
- 📕High-power ion thruster technologyJ. R. Beattie · 1992
- 📕Benefits of low-power electrothermal propulsionSteven R. Oleson · 1997
- 📕A low-erosion starting technique for high-performance arcjetsJohn M. Sankovic · 1994
- 📕Performance of a low-power subsonic-arc-attachment arcjet thrusterJohn M. Sankovic · 1993
- 📕Advanced low-cost O₂/H₂ engines for the SSTO applicationB. David Goracke · 1994
- 📕Experimental performance of a high-area-ratio rocket nozzle at high combustion chamber pressureRobert S. Jankovsky · 1996
- 📕Metallized gelled propellantsBryan A. Palaszewski · 1995
- 📕Mission advantages of constant power, variable ISP electrostatic thrustersSteven R. Oleson · 2000
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
đź”— Related topics
- Jet propulsion Jet propulsion is the propulsion of an object in one direction, produced by ejecting a jet of fluid in the opposite direction. By Newton's third law, the…
- Tsiolkovsky rocket equation The classical rocket equation, Tsiolkovsky rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that…
- Thermal rocket A thermal rocket is a rocket engine that uses a propellant that is externally heated before being passed through a nozzle to produce thrust, as opposed…
- Jet engine A jet engine is a type of reaction engine, discharging a fast-moving jet of heated gas (usually air) that generates thrust by jet propulsion. While this…
- Reaction engine A reaction engine is an engine or motor that produces thrust by expelling reaction mass (reaction propulsion), in accordance with Newton's third law of…
- Rocket propellant Rocket propellant is used as a reaction mass ejected from a rocket engine to produce thrust. The energy required can either come from the propellants themselves…
- Rocket engine A rocket engine is a reaction engine, producing thrust in accordance with Newton's third law by ejecting reaction mass rearward, usually a high-speed jet…
- Thrust-specific fuel consumption Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumptio…