Dynamic Aeroelasticity phenomenon

01 January 1970 1 375 Report

Can anyone give light on the relation between flutter and Buffeting phenomena apart from being linked by same causal factors (Separation/and shock waves relation of oscillating airfoil)?

Jochen Wild

Buffetting and flutter are two completely different things.

Flutter is an aerodynamically triggered aeroelastic stability mode oscillation depending on structural stiffness, damping and mass distribution.

Buffetting is an aerodynamic instability of a shock movement due to shock induced separation onset

Thus, flutter is not limited to transonic flow conditions and buffetting is not linked to structrual stiffness of the wing.

Only, in case that the Eigenfrequencies of flutter and buffetting match, you may end up in a buffetting flutter mode

Badges
Science topic

More Noah Oyeniran's questions See All

Measuring the Raman Spectrum of Monolayer Graphene with a 785 nm laser?

I am trying to obtain the Raman spectrum of monolayer graphene deposited on Si/SiO2 and grown through CVD. I obtained the graphene from ACS. However, the microscope only has a 785 nm laser. From...

19 June 2024 2,148 4 View

How can I make my graphene ink more spreadable?

I've been working on graphene ink for a while now and have encountered some issues with its spreading on paper. I'm uncertain whether the problem lies in the ink formulations or the size of the...

13 May 2024 9,178 2 View

Gaussian Connectivity Error?

Hi! I am working on a thesis project using Gaussian to model reactivtiy in compounds and I keep getting the error message " End of file reading connectivity." I have looked through Gaussian...

03 February 2024 5,869 2 View

Will DTT elute a protein off an antibody?

Hi, I'm trying to isolate my protein (Flag-tagged NOD2) in native conformation for BN-PAGE. I plan to IP the NOD2, I need to get the NOD2 off the beads/antibody without denaturing it. If I add DTT...

25 January 2024 3,877 1 View

What is the most accurate A280 absorbance range for protein quantitation on a NanoDrop Spectrophotometer?

I am an undergraduate researcher using a NanoDrop Lite Spectrophotometer to estimate protein concentrations based on A280 molar extinction coefficients. According to the Beer-Lambert Law, A = c *...

24 October 2023 5,225 0 View

Can graphene be air-dried effectively without the need for special equipment like a freeze dryer or vacuum?

I have successfully synthesized both graphene and graphene oxide in solution. However, I am uncertain about the appropriate method for drying them. I am aware that freeze-drying is the most...

05 August 2023 2,228 3 View

Would altering trauma on the brain change the very nature of who one is or can we target certain points and maintain the personal identity?

I'm working on a theory and would like to know if it's possible to change the brain in targeted areas without removing the essence of the person

17 April 2023 8,883 2 View

How to remove silica from deionized water?

Our lab does a lot of colorimetric tests for silica in solution (heteropoly blue method). We dilute our samples into our deionized water. This water starts as tap water, passes from a reverse...

19 November 2022 7,495 1 View

What are some good companies to submit samples for complex lipidomics?

I am a graduate student at UC Davis trying to submit samples for complex lipidomics. Our metabolomics core facility does offer this but the turn-around time is 4-5 months, so I am looking for...

14 June 2022 9,775 3 View

What is a good method of bonding a ceramic material to a non-conductive polymer?

My goal is to create a layer of Lead Zirconate Titanate, or other piezoelectric material, deposited on the surface of a PFTE Teflon tube. What are some good methods to accomplish this task?

05 April 2022 6,038 3 View

Controlling for pupil light reflex when analyzing pupil size time course?

I used eye tracking to examine how participants from two different populations (A and B) react to an image. Participants in population A exhibit larger pupil sizes over time, but they also have...

10 August 2024 3,229 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Where can I find free research instruments for Nursing?

for eg. transition shock scale

01 August 2024 5,998 0 View

Z-average size from Dynamic Light scattering can it be lower than the original probe size?

Hi everyone, Recently I have been conducting Dynamic Light scattering experiments in a micellar solution at 5 and gel at 37 degrees of Celsius with latex particles of diameter 190-500 nm. While...

01 August 2024 1,168 4 View

While doing Chronoamperometry, when the light is turned off, why the current is not decreasing sharply?

Here, I have used Ag/AgCl as reference electrode and 0.5M KOH.

29 July 2024 4,538 3 View

Why only alpha wave of brain are found in some patients?

I have found an EEG where only alpha waves are present. Beta waves are not found in active patients. What interpretations ?

26 July 2024 4,741 1 View

Aqua regia not heating up?

I used Aqua regia to clean Au nanoparticles in the used glassware. But for some reasons, it is not heating up upon mixing. The color did change from no color to light orange. The Au NPs on the...

25 July 2024 4,390 0 View

I found the zeta potential of exosomes in DLS and it was -8mv. So is it correct or not ?

What should be the zeta potential of bovine milk exosomes

25 July 2024 7,376 5 View

Comparing Liposome Size: DLS Measurement vs. SEM Observation with Air Drying ?

I have an issue with SEM imaging of liposomes. When measured by DLS, they appear to be around 120 nm, but when using SEM with simple air drying, they appear much larger, around one micrometer.

25 July 2024 3,395 3 View

Can anyone kindly suggest research topics in the area of thermodynamics, heat transfer, fluid mechanics or renewable energy?

I am an undergraduate mechanical engineering student seeking suggestions on topics related to either thermodynamics, fluid mechanics, heat transfer or renewable energy for my final year project....

24 July 2024 4,058 5 View