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NASA - NACA-TN-3176 - WALL INTERFERENCE IN WIND TUNNELS WITH SLOTTED AND POROUS BOUNDARIES AT SUBSONIC SPEEDS Organization: NASA
Date: 1954-01-01
Description: Linearized compressible-flow analysis is applied to the study of wind-tunnel-wall interference for subsonic flow in either two-dimension or circular test sections having slotted or porous walls. Expressions are developed for evaluating blockage and lift interference.
NASA-CR-2209 - DESIGN AND EXPERIMENTAL PERFORMANCE OF SHORT CURVED WALL DIFFUSERS WITH AXIAL SYMMETRY UTILIZING SLOT SUCTION Organization: NASA
Date: 1973-01-01
Description: The feasibility of designing short curved wall axially symmetrical subsonic diffusers utilizing suction through slots in the diffuser walls to prevent flow separation was investigated.
DIN 4900-1 - GERMAN LANGUAGE - STEEL FILTER AND SOLID WALL PIPES FOR WELLS - PART 1: SOLID WALL PIPES AND SLOT PERFORATION FILTERS Organization: DIN
DIN 4900-1 - STEEL FILTER AND SOLID WALL PIPES FOR WELLS - PART 1: SOLID WALL PIPES AND SLOT PERFORATION FILTERS Organization: DIN
Date: 2017-03-01
ASME B18.8.4M - SPRING PINS - SLOTTED (METRIC SERIES) Organization: ASME
Date: 1994-01-01
Description: Slotted spring pins have straight cylindrical sides with both ends chamfered and are formed with a single wall and a slot to accommodate radial compression. Also included is an Appendix providing supplementary information for the testing of pins in double shear.
NASA - NACA-RM-L53E07 REV B - ANALYTICAL STUDY OF BLOCKAGE- AND LIFT-INTERFERENCE CORRECTIONS FOR SLOTTED TUNNELS OBTAINED BY THE SUBSTITUTION OF AN EQUIVALENT HOMOGENEOUS BOUNDARY FOR THE DISCRETE SLOTS Organization: NASA
Date: 1954-01-01
Description: As a consequence of the assumption of homogeneity it is possible to express the interference of multislotted tunnels as a function of a single parameter which combines the effects of two physical variables: the ratio of open to total slotted wall perimeter and the number of slots. A curve is presented which permits the rapid evaluation of this parameter and numerical results for lift and blockage interference are plotted against the parameter.
ESDU 90005 - FREQUENCIES OF RESONANCE IN WIND TUNNELS WITH VENTILATED WALLS AND PLENUM CHAMBER. Organization: ESDU
Date: 1991-07-01
Description: ESDU 90005 derives semi-empirical equations for the resonance frequencies that occur at subsonic speeds in wind-tunnels with walls having slots or circular perforations. Results from the equations for the first resonance frequency (which can limit the usefulness of the tunnel for dynamic testing) are presented graphically for plenum chamber depth-to-height ratios of between 2 and 4.
NASA-CR-121024 - AN IMPROVED DESIGN METHOD AND EXPERIMENTAL PERFORMANCE OF TWO DIMENSIONAL CURVED WALL DIFFUSERS Organization: NASA
Date: 1972-01-01
Description: A computer design program was developed to incorporate the suction slots in solving the potential flow equations with prescribed boundary conditions.
NASA - NACA-ARR-L5C24 - LOW-PRESSURE BOUNDARY-LAYER CONTROL IN DIFFUSERS AND BENDS Organization: NASA
Date: 1945-01-01
Description: Tests have been made to study the effectiveness of small pressure differences, such as exist between the inside of airplane ducts and the external airplane surfaces suitable for duct exits, in removing the duct boundary layer through slots in the duct wall end thereby reducing separation losses.
ASTM D2658 - STANDARD TEST METHOD FOR DETERMINING INTERIOR DIMENSIONS OF FIBERBOARD BOXES (BOX GAGE METHOD) Organization: ASTM
Date: 2004-12-01
Description: This test method covers the determination of the interior dimensions of regular slotted or special slotted styles of single-wall corrugated, double-wall corrugated, and solid fiberboard boxes.
NASA - NACA-TN-3488 - SOME MEASUREMENTS OF FLOW IN A RECTANGULAR CUTOUT Organization: NASA
Date: 1955-01-01
Description: The flow in a rectangular cavity, or slot, in the floor of a wind tunnel is described by the results of pressure and velocity measurements.
ESDU 76028 - LIFT-INTERFERENCE AND BLOCKAGE CORRECTIONS FOR TWO-DIMENSIONAL SUBSONIC FLOW IN VENTILATED AND CLOSED WIND-TUNNELS. Organization: ESDU
Date: 1995-10-01
Description: The tunnel is rectangular-section, has solid side walls and either closed, longitudinally-slotted or perforated roof and floor.
NASA-TN-D-7331 - EFFECT OF BLOCKAGE RATIO ON DRAG AND PRESSURE DISTRIBUTIONS FOR BODIES OF REVOLUTION AT TRANSONIC SPEEDS Organization: NASA
Date: 1973-01-01
Description: Furthermore, the flow relief afforded by slots or perforations in test-section walls - designed according to previously accepted criteria for interference-free subsonic flow - does not appear to be sufficient to avoid significant interference of the walls with the model flow field for Mach numbers very close to 1.0.
NASA-TM-4549 - EFFECT OF PASSIVE VENTING ON STATIC PRESSURE DISTRIBUTIONS IN CAVITIES AT SUBSONIC AND TRANSONIC SPEEDS Organization: NASA
Date: 1994-01-01
Description: The passive venting techniques for shallow cavities that were investigated consisted of (1) porous floors, (2) slot vents at each end of solid floors, (3) slot vents at each end of porous floors, and (4) pipe vents on solid floors.
ASTM F949 - STANDARD SPECIFICATION FOR POLY(VINYL CHLORIDE) (PVC) CORRUGATED SEWER PIPE WITH A SMOOTH INTERIOR AND FITTINGS Organization: ASTM
Date: 2015-04-01
Description: This profile wall pipe consists of an outer corrugated wall fused to a smooth inner wall providing pipe stiffness levels of 46 psi and 115psi.
NASA - NACA-TN-705 - WIND-TUNNEL INVESTIGATION OF GROUND EFFECT ON WINGS WITH FLAPS Organization: NASA
Date: 1939-01-01
Description: A rectangular and a tapered wing were tested without flaps, with a split flap, and with a slotted flap. The ground was represented by a flat plate, completely spanning the tunnel and extending a considerable distance ahead and back of the model.
ASABE S607 - VENTILATING MANURE STORAGES TO REDUCE ENTRY RISK Organization: ASABE
Date: 2010-10-01
Description: This Standard specifies the forced-ventilation times required to evacuate contaminant gases (H2S, CH4, and CO2) from on-farm, confined-space, manure storages with either solid, totally slotted or partially slotted covers to concentrations below American Conference of Governmental Industrial Hygienists (ACGIH) recommended 8-hr.
UL 1724 OUTLINE - OUTLINE OF INVESTIGATION FOR FIRE TESTS FOR ELECTRICAL CIRCUIT PROTECTIVE SYSTEMS - ISSUE 3 Organization: UL
Date: 2006-12-07
Description: These requirements also cover sample systems which are subjected to an internal fire exposure to evaluate their ability to contain fires originating within the electrical circuit protective system if, for example, the system contains ventilation means such as holes, slots, louvers, or dampers. The internal fire exposure test may be waived at the discretion of the testing body if the material or installation, or both, obviate the need for such testing.
IPC-7351 - GENERIC REQUIREMENTS FOR SURFACE MOUNT DESIGN AND LAND PATTERN STANDARD - INCLUDES CD-ROM; SUBSCRIPTION CUSTOMERS CAN OBTAIN ONE COMPLIMENTARY COPY FROM IHS BY CONTACTING IHS CUSTOMER CARE AT +1 800 IHS-CARE (+1 800 447-2273) OR VISIT WWW.IHS.COM/CUSTOMERCARE; INCLUDES ACCESS TO ADDITIONAL CONTENT Organization: IPC
Date: 2010-06-01
Description: (See also ‘‘Locating Edge,’’ ‘‘Locating Edge Marker,’’ ‘‘Locating Notch,’’ ‘‘Locating Slot,’’ and ‘‘Tooling Hole.’’)*Via – A plated-through hole that is used as an interlayer connection, but in which there is no intention to insert a component lead or other reinforcing material.

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