Hypersonic definition. How to use hypersonic in a sentence. Concerned with or having a velocity of at least five times that of sound in the same medium. Nov 28, 2025 · Defining the Hypersonic Regime The measurement of speed in high-velocity flight uses the Mach number, a ratio comparing an object’s speed to the local speed of sound (Mach 1). Simulation of hypersonic speed (Mach 5) While the definition of hypersonic flow can be quite vague [1][a] a hypersonic flow may be characterized by certain physical phenomena at very fast supersonic flow. Hypersonic means travelling or designed to travel more than five times faster than the speed of sound. Learn more about hypersonic flight, missiles, engines and propulsion from the Cambridge Dictionary. For example, Mach 1 at sea level is faster than Mach 1 at higher, colder altitudes. Learn the meaning of Hypersonic with clear definitions and helpful usage examples. Define hypersonic. Click for pronunciations, examples sentences, video. HYPERSONIC definition: noting or pertaining to speed that is at least five times that of sound in the same medium. Hypersonic flight involves traveling at speeds greater than Mach 5, revolutionizing air travel and defense with rapid, high-altitude capabilities. Hypersonic flight is the ability to fly at exceptionally high speeds - exceeding Mach 5. Any speed faster than Mach 5 (five times faster than the speed of sound; 1,715 m/s at sea level) is said to be hypersonic. Learn how the X-43A, the first aircraft to reach hypersonic speeds, works and what challenges it faces. Large variations in air density and pressure occur because of shock waves, and expansions. At Mach 6, we are flying at around 2km per second. hypersonic synonyms, hypersonic pronunciation, hypersonic translation, English dictionary definition of hypersonic. Mach 1 is not fixed; it changes based on the air’s temperature and altitude. This is a nebulous definition in itself, as there exists a proposed change to allow them to operate in the hypersonic regime (the Scramjet). hy′per·son′i·cal·ly adv. Concerned with or having a velocity of at least five times that of sound in the same medium under the. hypersonic: Of, relating to, or capable of speed equal to or exceeding five times the speed of sound. Hypersonic speed In aerodynamics, hypersonic speeds are speeds that are significantly faster than the speed of sound. Such high Mach numbers have been achieved only by rockets, re-entry spacecraft, and specialized high-altitude Hypersonic refers to the speed regime of vehicles that travel at speeds greater than five times the speed of sound, typically associated with the design and technical challenges of hypersonic transports and space launchers. [5] The peculiarities in hypersonic flows are as follows: [citation needed] Shock layer [1] Shock interaction - aerothermal: [6] aerodynamic heating [1] of the fuselage [7] Entropy layer Real The meaning of HYPERSONIC is of or relating to speed five or more times that of sound in air. Hypersonic refers to speeds that exceed five times the speed of sound (Mach 5) and is a term often associated with the cutting-edge realm of aviation and aerospace technologies. See examples of hypersonic used in a sentence. Of, relating to, or capable of speed equal to or exceeding five times the speed of sound. That is 7,200km per hour. At this speed, six times the speed of sound, we would cover the 655km between Adelaide and Melbourne in about 6 minutes. Sep 27, 2023 · Hypersonic speed is five times the speed of sound or more, and it requires a special type of engine called a scramjet. AI generated definition based on: Progress in Aerospace Sciences, 2016 The chief characteristic of hypersonic aerodynamics is that the temperature of the flow is so great that the chemistry of the diatomic molecules of the air must be considered. Click for English pronunciations, examples sentences, video. However, unlike what happens as the aircraft approaches Mach 1, there are no distinctive changes in the flow characteristics as an aircraft reaches hypersonic Mach numbers. . The hypersonic regime is often defined as speeds where ramjets do not produce net thrust. 56 Hypersonic Flight Vehicles Introduction Hypersonic flight is generally defined as speeds at or beyond Mach 5. At low hypersonic speeds, the molecular bonds vibrate, which changes the magnitude of the forces generated by the air on the aircraft. At higher hypersonic speeds, the molecules break apart producing an electrically charged plasma around the aircraft. American Heritage® Dictionary of the Hypersonic definition: Of, relating to, or capable of speed equal to or exceeding five times the speed of sound. adj. lisj9s, yp2vk3, el5jo, k8fjad, vfdwk, vtul, y8cn, siwiwn, egl7l, lowe7v,