BPR

(redirected from Bypass ratio)
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AcronymDefinition
BPRBusiness Process Reengineering
BPRBiocidal Products Regulation (EU legislation)
BPRBlueprint Reading (course; various locations)
BPRBusiness Process Redesign
BPRBlogging Project Runway (fan site)
BPRBritish Performance Racing
BPRBusiness Process Re-Engineering
BPRBadan Pencegah Rasuah (anti-corruption agency; Malaysia)
BPRBank Perkreditan Rakyat (Indonesia; rural banks)
BPRBible Prophecy Research
BPRBureau of Public Roads
BPRBoard of Parks and Recreation (various locations)
BPRBypass Ratio
BPRBest Practice Recommendation (various organizations)
BPRBack-Pressure Regulator
BPRBusiness Public Relations (various locations)
BPRBulletin of Prosthetics Research (US VA)
BPRBottom Pressure Recorder
BPRBiological Phosphorus Removal
BPRBusiness Process Requirements
BPRBloque Popular Revolucionario
BPRBlue Planet Run (California)
BPRBeam Profile Reflectometry
BPRBerkeley Poetry Review (University of California, Berkeley; journal)
BPRBest Path Routing (computing; XRoads Networks)
BPRBleeding per Rectum
BPRBehavior Pattern Recognition
BPRBatch Production Record
BPRBachelor of Public Relations
BPRBit-Precise Reasoning
BPRBusiness Protection Regulation (UK)
BPRBack Pressure Relief
BPRBéton de Poudres Réactives (French: Reactive Powder Concrete)
BPRBurnable Poison Rod (pressurized-water-reactors)
BPRBordeaux-Paris Randonneurs (French cycling club)
BPRBrand-Person Relationship (advertising)
BPRBusiness Protection from Misleading Marketing Regulations (UK)
BPRBuyer Performance Report
BPRBilateral Program Review
BPRBatch Process Record
BPRBilling Problem Referral (Sprint)
BPRBridge Plotting Room
BPRBattle Proficiency Rate (gaming)
BPRBristol-Plymouth Regional Technical School
BPRBackup Path Reservation
BPRBackplane Receive (Nortel)
BPRBasic Primary Renewal
BPRBatch Processing Requirement
BPRBeaulieu, Poulin et Robitaille (French; Canadian engineering firm)
BPRBlock Point Release
References in periodicals archive ?
During the subsonic throttling, three-bypass ACE operates at double bypass mode with a lower bypass ratio at first.
where n is a corrective factor which depends on the bypass ratio R, and [k.sub.i], i = {1,2,3,4} are experimental corrective factors.
The bypass ratio [K.sub.F.E2] for new turbofan engine is defined as ratio between [M.sub.a.F.E2] and [M.sub.a.I.E2].
Furthermore, higher bypass ratio engines being the norm, the noise levels can only be expected to rise.
The first version of the GE90 will be rated at 75,000- to 80,000-lb thrust and will have a pressure ratio of 45 to 50:1 and a bypass ratio of almost 10:1.
However, some shortcomings exist in current researches: (1) the method used to calculate emission performance is Boeing fuel flow method, which is unable to reflect the effects of engine cycle parameters; (2) the noise analysis module does not account for the engine equipped with liner and chevron nozzle that suppress aircraft noise; (3) there was no attention paid to the issue that landing gear needs to be lengthened due to the higher bypass ratio engine to ensure the engine ground clearance and that the engine should not be damaged when the nose gear collapses.
I worked at Rolls-Royce in an advanced project section in 1956 when the fashionable bypass ratio was 0.6.
Since [V.sub.e] is largely determined by bypass flow in a high-bypass engine, the fan pressure ratio (which could by 1.6 for a bypass ratio of 8:1) is the key parameter.
When Wilde became head of advanced project design, transonic fan blades became necessary and, because of the high bypass ratio, also long.
The LEAP-X will have a high bypass ratio of 12:1, a higher compression ratio of 22, and significant weight savings, all to yield fuel savings in the 15 to 16 percent range, along with lower noise.